NEW : 36-year - old man held on murder , kidnapping , other charges . They were searching for a man who fled the scene dressed in a black shirt and blue jeans with a yellow cap and traveling in a black Acura TL with tinted windows and a sunroof . NEW : Suspect picked up Friday , questioned overnight . Two guards killed in armored vehicle accident outside bank ; a third guard wounded . Guards were servicing drive - up truck outside Philadelphia bank .
NEW : 36-year - old man held on murder , kidnapping , other charges . NEW : Suspect picked up Friday , questioned overnight . Two guards killed in armored vehicle accident outside bank ; a third guard wounded . Guards were servicing drive - up truck outside Philadelphia bank .