India, July 29 -- Shane Tamura has been identified as the gunman in the Manhattan shooting attack that left four, including NYPD officer Didarul Islam, dead. Tamura killed himself on the 33rd floor of the building at 345 Park Avenue.

Details about Tamura have begun to emerge, including the fact that he played football back in school, and lives with his parents in Las Vegas. However, as authorities search for a motive behind the killings, a number of questions linger.

Tamura reportedly carried out the shooting using a Pametto State Armory AR-15 assault rifle with .223 caliber bullets. He also had a concealed carry permit for the gun, which remains valid, it was reported.

However, during the press conference after the shooting, with New ...