A man was shot and killed by police after he allegedly threatened residents and staff of a suburban assisted living facility with a chainsaw on Sunday.

A man wielding a chainsaw inside a senior-living facility in St. Charles, Illinois, was shot and killed by police early Sunday, state and local law enforcement said. "Just before police arrival, witnesses advised the subject had now gained entry to the lobby of the building and began confronting residents with the chainsaw,

An officer shot and killed the man, who hasn't yet been named, at the River Glen of St. Charles residence on Sunday, Dec. 1

A man who Illinois authorities said threatened senior-living facility residents and staff with a chainsaw on Sunday was shot to death by police.

A man who was shot and killed while wielding a chainsaw inside an assisted living facility in a Chicago suburb has been identified by police.

A use-of-force investigation is underway in the fatal police shooting of a chainsaw-wielding man who threatened residents of a St. Charles assisted living center Sunday morning. Authorities have not yet released the suspect’s identity,

ST. CHARLES, Ill. (CBS) -- Police in St. Charles shot and killed a man they said was trying to attack officers and residents of a seniors' assisted living center with a chainsaw Sunday morning.

A shirtless man was reportedly attempting to cut down a tree outside around 8:45 a.m. of the building before he then entered the senior living facility, police said.

St. Charles police were initially called for a welfare check after witnesses reported a shirtless man, later determined to be Escalera, holding a chainsaw and attempting to cut do