Investigators believe Canh Le shot his nieces and their parents after an argument inside their East Lansdowne home, before then firing at police officers and setting a fire that killed his nephew.
District Attorney Jack Stollsteimer said there was no history of mental illness in the family or an indication of what could have caused the incident, which killed six people.
Officer Shot, Shooter Killed In Delaware County: Authorities - Springfield, PA - The injured officer is recovering at the hospital and is expected to be released soon, police said.
Suspect dead, Chester police officer wounded after being shot, authorities say phillyvoice.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phillyvoice.com Daily Mail and Mail on Sunday newspapers.