He was caught on CCTV walking down a street with Mehdi Nemmouche, the prime suspect in the case.
Nemmouche, a 29-year-old Frenchman, has so far been portrayed as a ‘lone wolf jihadi’ who allegedly carried out the massacre last May.
But, as he waits for his trial on remand while pleading his innocence, officers released the new colour video of a man who may well have been an accomplice.
It raises the possibility of Nemmouche being part of a terrorist cell dedicated to the killing of Jewish people.
“We need to identify this man, and question him as soon as possible,” said a Brussels police source.
Keep reading at: Police hunt for second man found in CCTV footage of Jewish Museum attack in Brussels | World | News | Daily Express.