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.

The man had gotten into the lobby of the building and started confronting residents with the chainsaw, according to investigators.