Police have identified the man who they say entered a Midtown Manhattan office building wearing body armor and opened fire, killing four people with a high-powered rifle, as Shane Devon Tamura.

Four people have been killed, including one NYPD officer, after gunfire erupted in Midtown Manhattan Monday afternoon, officials said. Here's a look at what happened in New York Monday evening. All time stamps are based on East Coast times. Four people were shot and killed in Midtown Manhattan on Monday.

At least four people were killed, including an off-duty police officer, in a skyscraper shooting in New York City on Monday evening that injured six others.