On Monday Spanish police shot dead Younes Abouyaaquob, the 22-year-old who drove a van into pedestrians in Barcelona, killing 13 and injuring over 100. The police say that they have now accounted for all 12 members of the terror cell, with four under arrest and the others all dead. Eight of the cell’s members lived in Ripoll, in the mountains north of Barcelona. Guy Hedgecoe reports.