The Midtown Manhattan office shooter fired 47 rounds from his M4-style rifle during the rampage, a number that indicates the suspect, Shane Tamura, reloaded his rifle at least once, the NYPD said. There were 23 shell casings and 13 bullet fragments recovered from the lobby of 345 Park Avenue,

Investigators found also found 800 rounds and a 357-caliber handgun in a BMW the shooter drove to the scene, the NYPD said.