New York City police officer killed by gunman in Midtown Manhattan, several people wounded, sources say

A New York City police officer was shot and killed and another was wounded in a shooting in Midtown Manhattan on Monday evening, sources say.At least two civilians were also wounded, including one critically, and the suspect died of a self-inflicted gunshot wound, law enforcement sources said."At this time, the scene has been contained and the lone shooter has been neutralized," NYPD Commissioner Jessica Tisch said.Sources say the shooter walked into the 44-story building at 345 Park Ave. just b