Greater Manchester police on Saturday released images of Salman Abedi to help establish a timeline of Abedi's movements from May 18 through Monday night, when police say he detonated a suicide bomb that killed 22 people in the foyer of Manchester Arena as they exited an Ariana Grande concert. In a statement, chief constable Ian Hopkins and deputy assistant commissioner Neil Basu described the investigation as "large scale" and "fast-moving" five days after the attack.