[b]Boston bomb scene pictures show remains of explosive device[/b] The remains of a pressure cooker that the FBI says was [imgview=http://img11.imageshack.us/img11/5114/bombp.jpg][img=150x102]http://img11.imageshack.us/img11/5114/bombp.th.jpg[/img][/imgview] part of one of the bombs that exploded during the Boston Marathon.