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.

Shane Tamura, a 27-year-old former high school football player from Las Vegas with a documented mental health history, was identified as the gunman who killed four people, including an NYPD officer, in a mass shooting at 345 Park Avenue in Manhattan on July 28,

Detectives found prescription medication for depression and epilepsy in the Las Vegas home of Midtown mass shooter Shane Tamura, sources tell The Post.