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 was calm at the River Glen of St.

Police were called to the River Glen of St. Charles at 975 N. 5th Ave. about 8:45 a.m. Sunday where a shirtless man with a chainsaw was trying to cut down a tree. The man then entered the facility and tried to attack residents,