Terrifying scenes in Midtown Manhattan showed office workers running for their lives with their hands in the air. The surveillance image shows the suspect, identified as 27-year-old Shane Tamura, entering the skyscraper with an M-4 assault rifle at his side.

Four people were killed, including an off-duty New York City police officer, when a gunman opened fire in an office tower before fatally shooting himself, officials said.

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.The 27-year-old recently lived in Las Vegas,