Charles Edwards Case, who is on death row for murder, types a letter to his attorney with a typewriter inside his cell on the East Block for condemned prisoners during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. REUTERS/Stephen Lam 

Actor and comedian Bill Cosby (C) arrives with attorney Monique Pressley (R) for his arraignment on sexual assault charges at the Montgomery County Courthouse in Elkins Park, Pennsylvania December 30, 2015. Cosby was charged on Wednesday with sexually assaulting a woman in 2004 after plying her with drugs and alcohol, marking the first criminal case against a once-beloved performer whose father-figure persona was already left tattered by dozens of misconduct allegations. REUTERS/Mark Makela 

Ryan Lemm, 4, salutes as he is carried by New York Police Department officer John McCrossen as he watches the casket of his father, NYPD officer Joseph Lemm, who was killed on duty in Afghanistan, following funeral services in the Manhattan borough of New York, December 30, 2015. McCrossen was Lemm's partner in the NYPD Warrant Squad. Lemm was one of six U.S. troops killed by a suicide bomber near Bagram air base in Afghanistan. REUTERS/Carlo Allegri 

Fireworks explode over the Sydney Opera House and Harbour Bridge as Australia's largest city ushers in the new year, January 1, 2016. REUTERS/Jason Reed 

A fire engulfs The Address Hotel in downtown Dubai in the United Arab Emirates December 31, 2015. REUTERS/Ahmed Jadallah 

A resident pointing a building where Ethan Couch, 18, and his mother, Tonya Couch stayed in the Pacific beach resort of Puerto Vallarta, Mexico December 30, 2015. The wealthy Texas teenager who fled with his mother to Mexico avoided an ostentatious lifestyle in the pair's last days at a beach getaway full of hotels, restaurants and bars popular with American tourists, according to people who saw them.The fugitive pair opted for a modest apartment, kept a low profile, and the mother at least once used a false name as they tried to stay under the radar in the Pacific resort of Puerto Vallarta, locals and neighbors said. REUTERS/Henry Romero 

A man carries an injured child in a site damaged from what activists said was shelling by forces loyal to Syria's President Bashar al-Assad in the town of Douma, eastern Ghouta in Damascus, Syria December 30, 2015. REUTERS/Bassam Khabieh 

A migrant walks between makeshift shelters near an embankment with the message, "We Have A Dream" below a fence topped with razor wire in the "new jungle", a field where migrants and asylum seekers gather in Calais, France, December 30, 2015. REUTERS/Pascal Rossignol 

A man stands in the middle of a burnt forest following a bushfire near the Basque town of Berango, near Bilbao, northern Spain, December 29, 2015. REUTERS/Vincent West 

Fire photographer Tod Sudmeier gets hit with flying embers from strong winds at the Solimar brush fire that started early Saturday morning in Ventura County, California December 26, 2015. A wildfire in Southern California burned over 1,000 acres of land, forced the closure of parts of two major highways and led to evacuations on Saturday, fire officials said. REUTERS/Gene Blevins 

A young girl from Kurdistan leaves her tent in a muddy field called the Grande-Synthe jungle, a camp of makeshift shelters where migrants and asylum seekers from Iraq, Kurdistan and Syria gather in Grande-Synthe, France, December 29, 2015. REUTERS/Pascal Rossignol 

Submerged roads and houses are seen after several days of heavy rain led to flooding, in an aerial view over Union, Missouri December 29, 2015. A storm system that triggered deadly tornadoes and flooding in the U.S. Midwest and Southwest pushed north on Tuesday, bringing snow and ice from Iowa to Massachusetts and another day of tangled air travel. REUTERS/Kate Munsch 

Officials inspect damage at a Coca-Cola beverages factory after Saudi-led air strikes destroyed it in Yemen's capital Sanaa December 30, 2015. REUTERS/Khaled Abdullah 

Students hold portraits of deceased former South Korean "comfort women" during a weekly anti-Japan rally in front of Japanese embassy in Seoul, South Korea, December 30, 2015. REUTERS/Kim Hong-Ji 

Internally displaced Syrians stand inside their makeshift shelter that is an underground cave in Om al-Seer, southern Idlib countryside, Syria December 26, 2015. REUTERS/Khalil Ashawi