Overview
- Shane Devon Tamura, 27, opened fire with an M4 rifle in the lobby and on the 33rd floor before dying by suicide
- Four people were killed, among them off-duty NYPD Officer Didarul Islam, a Blackstone executive, a Rudin Management associate and a security guard
- Investigators recovered a handwritten note in which Tamura blamed chronic traumatic encephalopathy and expressed grievances against the NFL
- Authorities traced Tamura’s cross-country drive through Colorado, Nebraska and Iowa, arriving in New York on July 28
- The NYPD, FBI and bomb squad continue a joint investigation into the shooter’s motives, his travel history and the tower’s security protocols