PARIS (AP) — A French journalist held hostage for months by extremists in Syria identified one of his captors Saturday as a Frenchman suspected of later killing four at the Brussels Jewish Museum, saying the militant had took sadistic delight in mistreating prisoners.

Nicolas Henin said he often heard Mehdi Nemmouche, who he said was among his captors from July 2013 to December 2013, torturing Syrians who were being held in the same former hospital basement. Once, Henin told reporters, Nemmouche punched him in the face and then showed off his gloves.