Authorities said the search for Younes Abouyaaqoub, a 22-year-old Moroccan national, now extended across Europe.
He is thought to have been the only driver of the van that plowed his van into crowds on Las Ramblas just after 5pm Thursday, killing 13 people and injuring over 120 others, Catalan Interior Minister Joaquim Form told a news conference Monday.
Police said Abouyaaqoub fled the scene of the attack on foot and hijacked a car to escape. Abouyaaqoub stabbed the owner of the car, Pau Perez, as he parked the vehicle, and drove off with his body inside the car.
Police fired on the car after it rammed through a checkpoint just after 6pm night but Abouyaaqoub was able to flee a second time. Perez was found dead in the vehicle. He becomes the 15th victim of the attacks in Barcelona and the Catalan town of Cambrils, where one woman died early on Friday morning.
Spain’s Ministry of Interior tweeted a CCTV photo of Abouyaaqoub Monday, asking for it to be shared on social media.
Speaking to local radio Monday, Form said all the evidence pointed to Abouyaaqoub being the driver and that security services were working with other agencies around Europe to find him.
Police carried out more raids overnight at homes in the town of Ripoll, where many of the suspects in the attack lived, Forn said, according to Reuters.