CNN CNNI Simulcast December 23, 2014 06:08:00
Ismaaiyl brinsley did not shoot them in retaliation for police brutality. he was mentally ill and needed help. meanwhile, the nypd is trying to piece together his timeline before the shooting. martin savage has more. >> reporter: surveillance video shows suspected gunman ismaaiyl brinsley at a mall saturday, about three hours from now, he'll shoot and kill two new york police officers. authorities are still trying to piece together those final hours. ? if any w . >> if anyone has seen this individual -- >> reporter: this video captures the moments just after the shooting as personnel try to sa...