French jihadist Mehdi Nemmouche was convicted in Belgium on Thursday of murdering four people at the Jewish Museum of Belgium in Brussels nearly five years ago.

A gunman opened fire at the museum on May 24, 2014, killing four people. Three died at the scene; a fourth was taken to the hospital and died on June 6.

Nemmouche, a French national of Algerian descent, was arrested on May 30 in Marseille in connection with the shooting. He is believed to have spent more than a year in Syria and had links with radical Islamists.

Nemmouche, 33, showed no reaction as the verdict was read on Thursday, noting the “terrorist murders.” He faces life behind bars.

Sentencing could be as early as Friday.