March 12 (UPI) -- Mehdi Nemmouche, a 33-year-old militant who'd previously fought in Syria for the Islamic State, was found guilty last week of "terrorist murder" for the anti-Semitic massacre of four people at the Jewish Museum of Belgium on May 24, 2014. It was the first terrorist attack on European soil by an individual who had fought for the group in Syria.
When asked for comment following his sentencing Monday, Nemmouche said, "life goes on," BBC News reported.
Accomplice Nacer Bender, 30, was sentenced to 15 years in prison for having helped plan the attack and supply Nemmouche with the weapons he used during the crime.
"I am ashamed to have crossed paths with [Nemmouche]," Bender told the court following sentencing. "He is not a man, he is a monster."
Nemmouche had claimed to be innocent, and his lawyer attempted to paint his client during the two-month trial as having been set up by foreign intelligence agencies in a conspiracy targeting Mossad, the Israeli intelligence agency.
Nemmouche also faces separate kidnapping charges in France for detaining four French journalists from June 2013 to April 2014 in Islamic State-controlled Aleppo, Syria, prosecutors said.