Former hostage says Brussels museum shooting suspect was an ISIS guard

May 25, 2014: These photos taken from surveillance footage and released by Belgian Federal Police show a man shooting at the Jewish museum in Brussels, Belgium, on Saturday, May 24, 2014. (AP Photo/Belgian Federal Police)

FILE - This undated file photo file provided by photographer Benoit Schaeffer shows French photo-reporter Nicolas Henin in Mogadishu, Somalia. President Francois Hollande's office said in a statement Saturday April 19, 2014 he feels "immense relief" after learning Saturday of the release of Edouard Elias, Didier Francois, Nicolas Henin and Pierre Torres _ all said to be in good health despite "very trying conditions" of their captivity. (AP Photo/Benoit Schaeffer, File) (The Associated Press)

A French journalist who was held hostage by ISIS until his release earlier this year has identified one of his torturers as the suspect in the deadly shooting at the Jewish Museum in Brussels.

The Daily Telegraph reported that Nicolas Henin had confirmed the identity of Mehdi Nemmouche as one of his captors in an article written for the French magazine Le Point. The Telegraph reported that Henin had decided to speak up about his experience after the French newspaper Le Monde quoted French intelligence sources naming Nemmouche as an ISIS member.

Nemmouche is currently awaiting trial in the May 24 shooting, in which he is accused of killing an Israeli couple and a French woman who were visiting the museum, as well as a Begian man who worked there. Nemmouche was arrested six days later in the southern French city of Marseille.

Henin was released from captivity in April along with three other French journalists. His lawyer, Marie-Laure Ingouf, told the Telegraph that the other three men had also recognized Nemmouche from their time in captivity. The Telegraph reports that the four were at one point held alongside American journalists James Foley and Steven Sotloff, both of whom were beheaded by ISIS in recent weeks.

In the article, Henin describes Nemmouche as sadistic, saying "When Nemmouche was not singing, he was torturing. He was part of a small group of Frenchmen whose visits would terrify the 50-odd Syrian prisoners held in the cells nearby." The journalist adds that the jihadist used to taunt him, saying "You see these motorbike gloves? I bought them to hit you. Only for you. Do you like them?"

French authorities say there are some 900 people from France who have been implicated in jihad in the Syria region. Several dozen have been killed.

The Associated Press contributed to this report.