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

A gunman who killed four people at a Manhattan office building bought the rifle from his supervisor at a Las Vegas casino, authorities said.

The gunman who opened fire at a Manhattan office building Monday, killing four people before taking his own life, legally purchased the rifle used in the attack, according to an attorney for the Las Vegas casino supervisor he bought it from.