Paola and Claudio Regeni (back, wearing hat) arrive at the courthouse for the pre-trial hearing to decide if four high-ranking Egyptian security officers should go on trial for the 2016 Cairo abduction, torture and killing of their son Giulio Regeni, a student, in Rome, Italy, May 25, 2021. REUTERS/Yara Nardi

Paola Regeni arrives at the courthouse for the pre-trial hearing to decide if four high-ranking Egyptian security officers should go on trial for the 2016 Cairo abduction, torture and killing of her son Giulio Regeni, a student, in Rome, Italy, May 25, 2021. REUTERS/Yara Nardi

Paola and Claudio Regeni stand outside the courthouse with their lawyer Alessandra Ballerini before the pre-trial hearing to decide if four high-ranking Egyptian security officers should go on trial for the 2016 Cairo abduction, torture and killing of their son Giulio Regeni, a student, in Rome, Italy, May 25, 2021. Sign reads, "Truth for Giulio Regeni". REUTERS/Yara Nardi

A man holds a sign reading, "Truth for Giulio Regeni", outside the courthouse before the pre-trial hearing to decide if four high-ranking Egyptian security officers should go on trial for the abduction, torture and killing of the student in Cairo in 2016, in Rome, Italy, May 25, 2021. REUTERS/Yara Nardi

Paola and Claudio Regeni arrive at the courthouse for the pre-trial hearing to decide if four high-ranking Egyptian security officers should go on trial for the 2016 Cairo abduction, torture and killing of their son Giulio Regeni, in Rome, Italy, May 25, 2021. REUTERS/Yara Nardi

Paola and Claudio Regeni arrive at the courthouse for the pre-trial hearing to decide if four high-ranking Egyptian security officers should go on trial for the 2016 Cairo abduction, torture and killing of their son Giulio Regeni, in Rome, Italy, May 25, 2021. REUTERS/Yara Nardi

Demonstrators form a cross with votive candles after a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza TPX IMAGES OF THE DAY

A demonstrator holds up a sign during a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. The sign reads: "Justice for Jose Alberto, Ana Karen and Luis Angel. #TheyAreKillingUs." REUTERS/Fernando Carranza

People take part in a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. The banners read: "Peace and Justice for all." REUTERS/Fernando Carranza

People take part in a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

Relatives of missing persons react after a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

Relatives of missing persons react after a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

People take part in a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

Demonstrators hold candles after a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

Demonstrators hold candles after a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

Relatives of missing persons hold up photos of their loved ones during a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

A demonstrator shows a sign reading "Jalisco, Narco State" during a march to demand justice for the siblings Jose Alberto, Ana Karen and Luis Angel Gonzalez Moreno, who were abducted and killed by unknown assailants, according to local media, in Guadalajara, in Jalisco state, Mexico May 11, 2021. REUTERS/Fernando Carranza

Parents of students from the Federal College of Forestry Mechanization who have been abducted speak after a meeting in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Parents of students from the Federal College of Forestry Mechanization who have been abducted speak after a meeting in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Parents of students from the Federal College of Forestry Mechanization who have been abducted speak after a meeting in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Parents of students from the Federal College of Forestry Mechanization who have been abducted speak after a meeting in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Catherine Saleh, mother of Stephen Shuani, 29, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Catherine Saleh, mother of Stephen Shuani, 29, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, wipes her face as she speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Parents of Federal College of Forestry Mechanization students who have been abducted attend a meeting in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, closes her eyes as she speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Parents of Federal College of Forestry Mechanization students who have been abducted attend a meeting in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

Linda Peter, mother of Jennifer, 18, one of the Federal College of Forestry Mechanization students who has been abducted, speaks during an exclusive interview with Reuters in Kaduna, Nigeria April 28, 2021. Picture taken April 28, 2021. REUTERS/Afolabi Sotunde

A doctor, who wants to remain anonymous after being abducted shortly after leaving the hospital where he works, adjusts his white coat during an interview with Reuters, in Port-au-Prince, Haiti March 10, 2021. Picture taken March 10, 2021. REUTERS/Valerie Baeriswyl

A doctor, who wants to remain anonymous after being abducted shortly after leaving the hospital where he works, poses for a photo during an interview with Reuters, in Port-au-Prince, Haiti March 10, 2021. Picture taken March 10, 2021. REUTERS/Valerie Baeriswyl

Rebecca Samuel, mother of Sarah, one of the school girls that was abducted by Boko Haram, cries during the 7th anniversary of the schoolgirls abduction in Abuja, Nigeria April 14, 2021. REUTERS/Afolabi Sotunde

His Eminence John Onaiyekan, former Catholic archbishop of Abuja and keynote speaker of the 7th anniversary of Bring Back Our Girls abduction speaks in Abuja, Nigeria April 14, 2021. REUTERS/Afolabi Sotunde

His Eminence John Onaiyekan, former Catholic archbishop of Abuja and keynote speaker of the 7th anniversary of Bring Back Our Girls abduction speaks in Abuja, Nigeria April 14, 2021. REUTERS/Afolabi Sotunde

Rebecca Samuel, mother of Sarah one of the abducted Chibok girls cries during the 7th anniversary in Abuja, Nigeria April 14, 2021. REUTERS/Afolabi Sotunde

Rebecca Samuel, mother of Sarah one of the abducted Chibok girls cries during the 7th anniversary in Abuja, Nigeria April 14, 2021. REUTERS/Afolabi Sotunde

A door leave is seen laid aside a day after over 300 school girls were abducted by bandits away from the JSS school in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Milk maidens walk along the street opposite the JSS Jangebe school, after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

One of the parents of the abducted JSS Jangebe school girls reflects, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

One of the parents of the abducted JSS Jangebe school girls reflects, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

One of the parents of the abducted JSS Jangebe school girls reflects, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A pair of slippers belonging to one of the JSS Jangebe school girls is seen a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A member of the special forces of the police team walks at the JSS Jangebe school, after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Personal items of one of the students from JSS Jangebe school are seen on the bed, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Some of the clothing of the JSS Jangebe school is seen on the beddings, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A bicycle is seen inside the premises of JSS Jangebe school, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A team of security experts tour the JSS Jangebe school, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Police officers walk at the JSS Jangebe school, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Police officers walk at the JSS Jangebe school, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Police officers walk at the JSS Jangebe school, a day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A sign is seen in front of the JSS Jangebe school, day after over 300 school girls were abducted by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

The view shows the interior of one of the school hostels where over 300 JSS Jangebe school girls were abducted from by bandits, in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A milk maid walks toward the gate of JSS Jangebe school, a day after over 300 school girls were abducted from the school in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde TPX IMAGES OF THE DAY

One of the parents of the abducted JSS Jangebe school girls reflects, a day after his daughter was taken away by bandits from the school in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

One of the parents of the abducted JSS Jangebe school girls looks on, a day after five of his daughters were taken away by bandits from the school in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

Some of the parents of the abducted JSS Jangebe school girls are seen in Zamfara, Nigeria February 27, 2021. REUTERS/Afolabi Sotunde

A piece of cloth belonging to one of the students is seen on the ground after gunmen attacked and abducted students and teachers from the Government Science College in Kagara, Niger state, Nigeria February 18, 2021. REUTERS/Afolabi Sotunde