This is an undated handout photo sourced from social media of 22-year-old Younes Abouyaaquoub. Authorities in Spain and France pressed their search Saturday, Aug. 19, 2017 for the supposed ringleader of an Islamic extremist cell that carried out vehicle attacks in Barcelona and a seaside resort, as the investigation focused on links among the Moroccan members and the house where they plotted the carnage.  One of the main suspects in the attacks, Younes Abouyaaquoub, a 22-year-old Moroccan, was believed to be at large. His name figures on a police list of four main suspects sought in the attack. All the suspects on the list hail from Ripoll, a quiet, upscale town of 10,000 about 100 kilomaters north of Barcelona. (Social Media via AP)