American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizen Alek Skarlatos, one of the three American "heroes" of the Thalys train, talks to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Thibault de Montbrial, French lawyer representing three American friends, put on their protective face masks next to Mark Moogalian, a U.S.-born Frenchman, as they leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Thibault de Montbrial, French lawyer representing three American friends, leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

A Thalys stewardess hugs American citizen Alek Skarlatos, one of the three American "heroes" of the Thalys train, next to American citizen Anthony Sadler as they leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizen Anthony Sadler, one of the three American "heroes" of the Thalys train, talks to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Thibault de Montbrial, French lawyer representing three American friends, put on their protective face masks next to Mark Moogalian, a U.S.-born Frenchman, as they leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, Thibault de Montbrial, French lawyer representing three American friends, and lawyer Louis Cailliez pose for journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

A Thalys stewardess hugs American citizen Anthony Sadler next to Alek Skarlatos as the two of the three American "heroes" of the Thalys train leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes TPX IMAGES OF THE DAY

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, Thibault de Montbrial, French lawyer representing three American friends, and lawyer Louis Cailliez pose for journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, are seen on a camera screen as they talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizen Alek Skarlatos, one of the three American "heroes" of the Thalys train, talks to journalists as he leaves after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

A Thalys stewardess hugs American citizen Alek Skarlatos, one of the three American "heroes" of the Thalys train, as he leaves after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Mark Moogalian, a U.S.-born Frenchman, leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Mark Moogalian, a U.S.-born Frenchman, leave after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, his wife Isabelle Moogalian, and Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

American citizens Anthony Sadler and Alek Skarlatos, two of the three American "heroes" of the Thalys train, Mark Moogalian, a U.S.-born Frenchman, Thibault de Montbrial, French lawyer representing three American friends, talk to journalists after testiying during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

Mark Moogalian, a U.S.-born Frenchman, arrives to testify during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

Isabelle Moogalian, the wife of Mark Moogalian, a U.S.-born Frenchman, arrives to testify during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

Mark Moogalian, a U.S.-born Frenchman, arrives to testify during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

Mark Moogalian, a U.S.-born Frenchman, arrives to testify during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris, at Paris courthouse, France, November 20, 2020. REUTERS/Gonzalo Fuentes

Anthony Sadler and Alek Skarlatos, two of the three "heroes" of the Thalys train, leave the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes REFILE - CORRECTING TYPO IN LAST NAME

Alek Skarlatos, one of the three "heroes" of the Thalys train, leaves the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes

Alek Skarlatos, one of the three "heroes" of the Thalys train, leaves the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes

Alek Skarlatos, one of the three "heroes" of the Thalys train, leave the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes

Anthony Sadler, one of the three "heroes" of the Thalys train, leave the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes REFILE - CORRECTING TYPO IN LAST NAME

Anthony Sadler, one of the three "heroes" of the Thalys train, leave the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes REFILE - CORRECTING TYPO IN LAST NAME

Anthony Sadler, one of the three "heroes" of the Thalys train, leave the Paris courthouse during the trial of a suspected Islamist gunman who opened fire on a Thalys high-speed train between Amsterdam and Paris in France, November 19, 2020. REUTERS/Gonzalo Fuentes REFILE - CORRECTING TYPO IN LAST NAME

Kerry Cook, an appointed amicus curiae, delivers his submission during the sentencing of Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Kerry Cook, an appointed amicus curiae, delivers his submission during the sentencing of Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Justice Cameron Mander (L) addresses Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS ATTENTION EDITORS - PARTS OF THE IMAGE HAVE BEEN PIXELATED AT SOURCE

Standby counsel Pip Hall delivers a submission from Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Justice Cameron Mander arrives to court on the final day of sentencing for Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Justice Cameron Mander sentences Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Justice Cameron Mander sentences Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Crown prosecutor Mark Zarifeh delivers his submission during the sentencing of Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Crown prosecutor Mark Zarifeh delivers his submission during the sentencing of Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, listens as Crown prosecutor Mark Zarifeh delivers his submission during Tarrant's sentencing at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS

Brenton Tarrant, the gunman who shot and killed worshippers in the Christchurch mosque attacks, listens as Crown prosecutor Mark Zarifeh delivers his submission during Tarrant's sentencing at the High Court in Christchurch, New Zealand, August 27, 2020. John Kirk-Anderson/Pool via REUTERS TPX IMAGES OF THE DAY

Manal Dokhan gestures during victim impact statements in the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Sazada Akhter is seen during victim impact statements in the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Hamimah Tuyan gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Abdul Aziz Wahabzadah gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Esam Alzhqhoul gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Abdul Aziz Wahabzadah gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Hamimah Tuyan gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Victim impact statements are given during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Hasmine Mohamedhosen gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Mulki Husein Abdiwahab gives a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

Sahadat Mohammed and his wife Parveen Tarnnum are seen while giving a victim impact statement during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS

John Milne holds a photograph of his son, Sayyad Milne, who was killed in the shooting, while giving a victim impact statement with his daughter Brydie Henry at his side, during the sentencing of mosque gunman Brenton Tarrant at the High Court in Christchurch, New Zealand, August 26, 2020. John Kirk-Anderson/Pool via REUTERS