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

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. On Sunday night, all ways calm at the River Glen of St.

Officers used a Taser on the man, but he did not stop, police said. An officer then shot the man, who was later pronounced dead.