New York City is mourning NYPD Officer Didarul Islam and three other people killed in Monday's shooting inside an office building at 345 Park Ave.

A shooting Monday at an office building in New York City that is home to the Blackstone investment firm and the NFL left four people dead, including an NYPD officer.

Police say a gunman who killed four people in a Manhattan skyscraper before taking his own life claimed to have a brain disease linked to contact sports and was trying

Goodell stayed in New York to attend the funeral of Didarul Islam, the NYPD officer who was one of four people killed earlier this week.

Tamura’s supervisor at the Horseshoe Las Vegas legally bought the AR-15-style rifle he sold to Tamura for $1,400, the New York Police Department said Wednesday. On Tuesday, police mistakenly said the supervisor had supplied only parts of the rifle used in the attack,