Police shot Abouyaaqoub, who was wearing a fake explosives belt, near Subirats west of Barcelona after a woman alerted them to the presence of a suspicious man.
Police, who have been hunting for Abouyaaqoub since last Thursday's attack, said earlier on Monday that he had killed another man while stealing a car to make his escape after the attack on Las Ramblas boulevard. (Reporting by Adrian Croft; Editing by Julien Toyer)