Palestinian boy Ahmed Dawabsha (R), 5, who suffered severe burns in an arson attack by suspected Jewish attackers on his family home last July and in which his younger brother, Ali, and his parents both died, is welcomed by relatives after returning from Spain where he met Real Madrid stars, at his grandfather's house in the West Bank village of Duma near Nablus March 22, 2016. REUTERS/Abed Omar Qusini

Palestinian boy Ahmed Dawabsha (3rd L), 5, who suffered severe burns in an arson attack by suspected Jewish attackers on his family home last July and in which his younger brother, Ali, and his parents both died, is welcomed by by relatives after returning from Spain where he met Real Madrid stars, at his grandfather's house in the West Bank village of Duma near Nablus March 22, 2016. REUTERS/Abed Omar Qusini

Palestinian boy Ahmed Dawabsha, 5, who suffered severe burns in an arson attack by suspected Jewish attackers on his family home last July and in which his younger brother, Ali, and his parents both died, is carried by his uncle after returning from Spain where he met Real Madrid stars, at his grandfather's house in the West Bank village of Duma near Nablus March 22, 2016. REUTERS/Abed Omar Qusini

Palestinian boy Ahmed Dawabsha (R), 5, who suffered severe burns in an arson attack by suspected Jewish attackers on his family home last July and in which his younger brother, Ali, and his parents both died, is carried by relatives after returning from Spain where he met Real Madrid stars, at his grandfather's house in the West Bank village of Duma near Nablus March 22, 2016. REUTERS/Abed Omar Qusini

Palestinian boy Ahmed Dawabsha, 5, who suffered severe burns in an arson attack by suspected Jewish attackers on his family home last July and in which his younger brother, Ali, and his parents both died, is helped to put on new shoes by relatives after returning from Spain where he met Real Madrid players, at his grandfather's house in the West Bank village of Duma near Nablus March 22, 2016. REUTERS/Abed Omar Qusini

Ahmed Dawanshe's relatives stand by his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's uncle Nasser holds him as he lies in his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad TPX IMAGES OF THE DAY

Ahmed Dawanshe lies in his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's grandmother Satira stands by his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's grandmother Satira (R) and grandfather Hussain stand by his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's grandmother Satira stands by his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's uncle Nasser comforts him as he lies in his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's uncle Nasser stands by his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's uncle Nasser holds him as he lies in his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Ahmed Dawanshe's uncle Nasser sits by his bed in the Tel Hashomer hospital near the city of Tel Aviv, December 3, 2015. Ahmed Dawabshe, a 4-year-old Palestinian boy, suffered severe burns in an arson attack on his family home in the Israeli-occupied West Bank home that Israel suspects was carried out by far right Jewish assailants last July and in which his younger brother, Ali, and his parents both died. Israel announced on Thursday that a number of suspects were in custody after a recent breakthrough in the investigation in the case that has prompted Israel to crack down harder on violent far-right Jewish groups. REUTERS/Ammar Awad 

Relatives and friends of victims of an arson attack on the Casino Royale stand beside crosses bearing the number of victims as they mark the fourth anniversary of the incident in Monterrey, Mexico, August 25, 2015. Gunmen of the Zetas drug cartel attacked the Casino Royale on August 25, 2011, killing 52 people in Nuevo Leon's capital Monterrey, according to local media. REUTERS/Daniel Becerril

Relatives and friends of victims of an arson attack on the Casino Royale observe a minute of silence as they mark the fourth anniversary of the incident in Monterrey, Mexico, August 25, 2015. Gunmen of the Zetas drug cartel attacked the Casino Royale on August 25, 2011, killing 52 people in Nuevo Leon's capital Monterrey, according to local media. REUTERS/Daniel Becerril

Relatives and friends of victims of an arson attack on the Casino Royale march towards it as they mark the fourth anniversary of the incident in Monterrey, Mexico, August 25, 2015. Gunmen of the Zetas drug cartel attacked the Casino Royale on August 25, 2011, killing 52 people in Nuevo Leon's capital Monterrey, according to local media. REUTERS/Daniel Becerril

Relatives of a victim of an arson attack on the Casino Royale march towards it as they mark the fourth anniversary of the incident in Monterrey, Mexico, August 25, 2015. Gunmen of the Zetas drug cartel attacked the Casino Royale on August 25, 2011, killing 52 people in Nuevo Leon's capital Monterrey, according to local media. REUTERS/Daniel Becerril

Men take photos of a car of the Organization for Security and Cooperation in Europe (OSCE), which was burnt overnight, near its office in Donetsk, Ukraine, August 9, 2015. Four OSCE armoured vehicles were destroyed overnight in an arson attack at the OSCE Special Monitoring Mission (SMM) to Ukraine residence, OSCE said on its Twitter feed. REUTERS/Alexander Ermochenko 

The Organization for Security and Cooperation in Europe (OSCE) cars, which were burnt overnight, are covered with a canvas near its office in Donetsk, Ukraine, August 9, 2015. Four OSCE armoured vehicles were destroyed overnight in an arson attack at the OSCE Special Monitoring Mission (SMM) to Ukraine residence, OSCE said on its Twitter feed. REUTERS/Alexander Ermochenko 

Members of the Organization for Security and Cooperation in Europe (OSCE) work near an OSCE car, which was burnt overnight, near its office in Donetsk, Ukraine, August 9, 2015. Four OSCE armoured vehicles were destroyed overnight in an arson attack at the OSCE Special Monitoring Mission (SMM) to Ukraine residence, OSCE said on its Twitter feed. REUTERS/Alexander Ermochenko 

An arson investigator talks on a two-way radio inside a gutted slipper factory in Valenzuela, Metro Manila in the Philippines May 14, 2015. A fire at a factory making rubber slippers killed 31 workers in the Philippine capital on Wednesday, and dozens were missing and feared dead, officials said. REUTERS/Erik De Castro TPX IMAGES OF THE DAY

Four German police cars set on fire by anti-capitalist protesters burn near the European Central Bank (ECB) building hours before the official opening of its new headquarters in Frankfurt March 18, 2015. REUTERS/Kai Pfaffenbach (GERMANY - Tags: BUSINESS CIVIL UNREST TPX IMAGES OF THE DAY)

A burned copy of a Hamburger Morgenpost newspaper is pictured among other documents in front of a building of German newspaper Hamburger Morgenpost in Hamburg January 11, 2015. The building of German newspaper Hamburger Morgenpost was the target of an arson attack and two suspects were arrested, police said on Sunday. Like many other German newspapers, Hamburger Morgenpost has printed cartoons of French satire magazine Charlie Hebdo after the deadly attack on Wednesday in Paris. A police spokeswoman said that an incendiary device was thrown at the newspaper building in the night and documents were burned inside. REUTERS/Fabian Bimmer (GERMANY - Tags: CIVIL UNREST CRIME LAW MEDIA) 

The housing ministry is set on fire by anti-government supporters in Caracas April 1, 2014. Venezuelan troops dispersed opposition demonstrators with tear gas on Tuesday and blocked anti-government activist Maria Corina Machado, recently stripped of her seat in the National Assembly, from reaching the legislature. REUTERS/Jorge Silva (VENEZUELA - Tags: POLITICS CIVIL UNREST) 

Garment workers gather in front of the Standard Group garment factory which was on fire in Gazipur November 29, 2013. A huge fire on Friday destroyed the Bangladesh garment factory supplying key Western brands, authorities said, in a blaze touched off by workers angered over rumours of a colleague's death in police firing. There were no initial reports of casualties in the fire. Police broke up a clash with the workers with tear gas, but hundreds of workers gathered later, vandalized the factory, set two buildings on fire, and blockaded the road, said Mushfiqur Rahman, a manager at Standard Garments, a firm in the building. REUTERS/Andrew Biraj (BANGLADESH - Tags: DISASTER BUSINESS EMPLOYMENT TEXTILE TPX IMAGES OF THE DAY) 

Guarani Kaiowa Indian girl Sandriely cries in front of her hut destroyed by a fire set by an unknown arsonist in their makeshift camp squeezed between highway BR 463 and their ancestral land called Tekoha Apika'y, where they have been since 2009 when they last failed to take back the land from farmers, near Dourados, Mato Grosso do Sul state, August 31, 2013. The Guarani tribe is immersed in a bloody conflict with farmers over possession of their ancestral land that has characteristics of a territorial war, in spite of Brazil's indigenous policy being considered one of the most progressive in the world. The conflict highlights the risks being run by an agricultural superpower whose leftist government is trying to sort out centuries of ethnic disputes over ownership of the land from which much of the nation's wealth sprouts. Picture taken August 31, 2013. REUTERS/Lunae Parracho (BRAZIL - Tags: POLITICS ENVIRONMENT SOCIETY CIVIL UNREST TPX IMAGES OF THE DAY)

ATTENTION EDITORS: PICTURE 20 OF 30 FOR PACKAGE 'BRAZIL'S ANCESTRAL LAND WAR'. TO FIND ALL IMAGES SEARCH 'GUARANI TRIBE' 

Anti-government protesters set a car on fire to create a road block to mark the second anniversary of the February 14 uprising, in Budaiya, west of Manama, February 14, 2013. Protesters burnt tires and blocked most of the major roads leading to various highways causing delays in the early morning traffic. Alerts were issued to citizens of Britain and the U.S. residing in the country, according to their embassies. British and American schools were given a day off following the alert. REUTERS/Hamad I Mohammed (BAHRAIN - Tags: POLITICS CIVIL UNREST ANNIVERSARY TPX IMAGES OF THE DAY) 

A worker fixes a window in a room damaged in a suspected arson attack at the club house of Israeli Premier League side Beitar Jerusalem in Jerusalem February 8, 2013. The attack damaged the main club house of Beitar Jerusalem on Friday, a day after four fans were charged in court in connection with racist incitement against the team's recruitment of Muslim players, police said. REUTERS/Ronen Zvulun (JERUSALEM - Tags: CRIME LAW SPORT SOCCER) 

People put up crosses bearing the names of victims of an arson attack outside a casino in Monterrey January 8, 2013. Family members attached the crosses and photographs back on a fence surrounding the remains of the burnt building, after the owners had removed them, according to local media. Gunmen of the Zetas drug cartel attacked the Casino Royale on August 25, 2011, where at least 53 people were killed, in Nuevo Leon's capital Monterrey. REUTERS/Daniel Becerril (MEXICO - Tags: CRIME LAW CIVIL UNREST DRUGS SOCIETY TPX IMAGES OF THE DAY) 

A Buddhist monk tries to salvage his belongings from a burnt temple after an attack by Muslims, in Cox's Bazar October 1, 2012. Bangladesh accused Muslim Rohingya refugees from Myanmar on Monday of involvement in attacks on Buddhist temples and homes in the southeast and said the violence was triggered by a photo posted on Facebook that insulted Islam. REUTERS/Andrew Biraj (BANGLADESH - Tags: RELIGION CIVIL UNREST TPX IMAGES OF THE DAY) 

An election campaign tent for candidate Mohammed al-Juwiehel is seen burning in Kuwait City, January 30, 2012. Tribesmen torched the campaign tent of a candidate who insulted their tribe, days ahead of an election to choose the Gulf state's fourth parliament in six years. The incident is likely to raise tensions ahead of Thursday's vote, which was called in a bid to end the country's deepest political standoff in years. Picture taken January 30, 2012. REUTERS/Stringer (KUWAIT - Tags: POLITICS CIVIL UNREST ELECTIONS TPX IMAGES OF THE DAY) 

Firefighters try to put out an apartment fire that started from one of the 12 new carport fires set by an arsonist early Monday morning, in West Hollywood, California January 2, 2012. The fires damaged carports in Hollywood, North Hollywood, Sherman Oaks, Van Nuys and West Hollywood areas. Los Angeles police released video on Sunday of a man they would like to question as they investigate an unusual spate of arson attacks that torched dozens of cars in the days leading up to the new year. REUTERS/Gene Blevins (UNITED STATES - Tags: CRIME LAW TRANSPORT DISASTER) 

Firefighters try to put out an apartment fire that started from one of the 12 new carport fires set by an arsonist early Monday morning, in West Hollywood, California January 2, 2012. The fires damaged carports in Hollywood, North Hollywood, Sherman Oaks, Van Nuys and West Hollywood areas. Los Angeles police released video on Sunday of a man they would like to question as they investigate an unusual spate of arson attacks that torched dozens of cars in the days leading up to the new year. REUTERS/Gene Blevins (UNITED STATES - Tags: CRIME LAW TRANSPORT DISASTER) 

People charged in connection of setting a building on fire weep inside a police vehicle as they are taken to a prison after their hearing in a court at Mehsana, about 60 km (37 miles) north from the western Indian city of Ahmedabad November 9, 2011. A court on Wednesday convicted 31 Hindus for killing dozens of Muslims by setting a building on fire in Gujarat state during one of India's worst rounds of communal violence in 2002, local media reported. REUTERS/Amit Dave (INDIA - Tags: CRIME LAW TPX IMAGES OF THE DAY) 

An armored vehicle of the German Police removes burning barricades during clashes at the so-called street party "Schanzenfest" in the Schanze district in Hamburg August 20, 2011. REUTERS/Fabian Bimmer (GERMANY - Tags: POLITICS CIVIL UNREST) 

A boy looks at a burned out vehicle in Ealing in west London August 9, 2011. Prime Minister David Cameron will today hold crisis talks after three nights of riots, looting and arson by masked, hooded youths that wrecked shopping centres in many parts of London and spread to other cities. REUTERS/Toby Melville (BRITAIN - Tags: CIVIL UNREST CRIME LAW SOCIETY POLITICS) 

Burnt prayer books are seen inside a synagogue after arsonists set fire on them on the island of Corfu April 19, 2011. The fire damaged prayer books but caused no injuries, in the third such attack in Greece in less than two years, police said.The arson attack, staged just as the Passover festival was starting, alarmed the country's dwindling Jewish community. REUTERS/Icon/Stamatis Katapodis (GREECE - Tags: RELIGION CRIME LAW) 

A school boy, carrying a backpack, walks past burning fuel tankers along the GT road in Nowshera, located in Pakistan's Khyber-Pakhtunkhwa Province October 7, 2010. Gunmen in Pakistan set fire to up to 40 supply trucks for NATO troops in Afghanistan on Wednesday, police said. REUTERS/Adrees Latif (PAKISTAN - Tags: POLITICS CIVIL UNREST CRIME LAW) 

A car burns on an empty street in Togo's capital Lome, March 9, 2010. Togo's presidential vote is the latest in a string of disputed elections in Africa which risk undermining the trend of the last decade for political power to come through the ballot box. REUTERS/Noel Kokou Tadegnon (TOGO - Tags: POLITICS CIVIL UNREST) 

Car bodies which were set ablaze on New Year's eve are stacked in the Strasbourg municipal pound on January 1, 2009. Over New Year's eve, some fifty cars were set ablaze and seventeen people were arrested in the Strasbourg region. REUTERS/Jean-Marc Loos (FRANCE) 

Flames engulf a burning car outside council housing flats on New Year's Eve in Strasbourg's western suburb of Hautepierre December 31, 2008. REUTERS/Jean Marc Loos (FRANCE) 

Jewish settlers stand atop a Palestinian house after setting part of its yard ablaze during the eviction of Jewish settlers from a disputed building in the West Bank city of Hebron December 4, 2008. Israeli police used teargas and clubs to evict dozens of hard-line Jewish settlers from a disputed building in Hebron on Thursday after days of stone-throwing clashes with Palestinians. REUTERS/Baz Ratner (WEST BANK) 

A policeman stands near the scene of a car fire in Liversedge, northern England November 21, 2008. REUTERS/Nigel Roddis (BRITAIN) 

A fire begins at the carriage of a train at the Castelar station in Buenos Aires September 4, 2008. Furious rail commuters in Argentina on Thursday set fire to a train at the Merlo station, in the western suburbs of Buenos Aires, in anger over delays during the morning rush hour. REUTERS/Rodolfo Pezzon-DyN (ARGENTINA) 

Relatives look at the charred bodies of children after an arson attack in Nginginya village, north east of Lira town, March 10, 2008. REUTERS/Hudson Apunyo (UGANDA) 

Policemen stand guard at Namdaemun, or "Great South Gate", which was destroyed by fire, in Seoul February 11, 2008. The 600-year-old gate in central Seoul listed as South Korea's number one national treasure and the country's landmark symbol has been destroyed, possibly by an arsonist, police said on Monday. The gate, whose history is drummed into South Korean school children from an early age, is a huge loss to ordinary citizens, many of whom gathered to look in horror at a national icon reduced to ashes. REUTERS/Lee Jae-Won (SOUTH KOREA) 

The destroyed Namdaemun, or "Great South Gate", is surrounded by a cordon in Seoul February 11, 2008. The 600-year-old gate in central Seoul listed as South Korea's number one national treasure and the country's landmark symbol has been destroyed, possibly by an arsonist, police said on Monday. The gate, whose history is drummed into South Korean school children from an early age, is a huge loss to ordinary citizens, many of whom gathered to look in horror at a national icon reduced to ashes. REUTERS/Lee Jae-Won (SOUTH KOREA) 

An aerial view of the destroyed Namdaemun, or "Great South Gate", in Seoul February 11, 2008. The 600-year-old gate in central Seoul listed as South Korea's number one national treasure and the country's landmark symbol has been destroyed, possibly by an arsonist, police said on Monday. The gate, whose history is drummed into South Korean school children from an early age, is a huge loss to ordinary citizens, many of whom gathered to look in horror at a national icon reduced to ashes. REUTERS/Lee Jae-Won (SOUTH KOREA) 

An aerial view of the destroyed Namdaemun, or "Great South Gate", in Seoul February 11, 2008. The 600-year-old gate in central Seoul listed as South Korea's number one national treasure and the country's landmark symbol has been destroyed, possibly by an arsonist, police said on Monday. The gate, whose history is drummed into South Korean school children from an early age, is a huge loss to ordinary citizens, many of whom gathered to look in horror at a national icon reduced to ashes. REUTERS/Lee Jae-Won (SOUTH KOREA) 

A member of Kalenjin tribe runs after setting a building on fire in the town of Chepilat west of Nairobi February 3, 2008. Kenya's opposition called on the African Union on Sunday to deploy peacekeepers in the country as violence that has killed at least 900 people and displaced a quarter of a million continued to rage. REUTERS/Peter Andrews (KENYA) 

Pakistani religious students burn the environment ministry outside the Red mosque in Islamabad July 3, 2007. A Pakistani paramilitary trooper was shot dead during gunfire from the mosque run by a Taliban-style movement during clashes between security forces and Islamic students in Islamabad on Tuesday. REUTERS/Faisal Mahmood (PAKISTAN) 

A fireman sprays water in a burnt school in Thailand's Yala province, nearly 1084 km (672 miles) south of Bangkok June 6, 2007. Militants launched a dawn arson attack on a public school in Yala province on Wednesday, burning down a two-storey building with 30 computers and 10 televisions inside, police said. REUTERS/Surapan Boonthanom (THAILAND)