PHILADELPHIA — A "rambling" note expressing hatred for police was found after a man opened fire on a Philadelphia officer then went on a shooting rampage, injuring a second officer, killing a woman and wounding three other people before he was shot and killed by police in an alley, authorities said Saturday.
Police Commissioner Richard Ross identified the gunman in the attack overnight Friday as 25-year-old Nicholas Glenn, who was "well-known" to police and has a criminal record.
Ross said Glenn had a 9mm Ruger and at least three magazines as well as a plastic bag with 13 to 15 live rounds. Investigators were trying to track the origins of the weapon, which had an obliterated serial number.
"Obviously, he was hell-bent on hurting a lot of people," the commissioner said at a news conference, adding that "we aren't absolutely clear as to why."
Police believe Glenn acted on his own and not as part of a group.