Police say four people were shot and killed, including a New York City police officer, inside a Midtown Manhattan office building on Monday. Police identified the gunman as Shane Tamura, 27. The motive is still under investigation.

A shooting in a Manhattan office tower left five shot and four dead, including an NYPD officer, before the shooter, Shane Tamura, took his own life. Tamura targeted the building due to his belief that the NFL was responsible for his problems;