Troopers fatally shoot knife-wielding Pennsylvania man

State troopers fatally shot a Pennsylvania man who reportedly had a knife and was threatening neighbours, but relatives say the man was merely suicidal.
Troopers from the Washington barracks planned a news conference today on the shooting of 34-year-old Anthony Gallo.
Gallo's family says he had been acting strangely since injuring his head in a May car accident. They called 911 yesterday afternoon, hoping troopers would help get him a mental health commitment.
Police encountered Gallo at the trailer park in Canton Township where he'd been staying with his grandmother. Washington County Coroner Tim Warco says troopers fired when Gallo refused to drop the knife and aggressively moved toward police.

Police haven't said how many shots were fired or how many troopers shot Gallo.
The district attorney is reviewing the shooting, which is standard.