The man who opened fire in a Midtown Manhattan office building, killing four people and wounding a fifth, appeared to be targeting the NFL headquarters and had a note claiming he suffered from CTE, police sources told ABC News.

The gunman who killed three civilians and an NYPD officer inside a Manhattan office building Monday evening left a note and was apparently targeting NFL offices.

Multiple casualties as gunman opened fire in the lobby of the midtown Manhattan building on Park Avenue that is home to the Blackstone investment firm and other corporations before moving to other floors.

Wearing body armor and wielding an assault-style rifle, the alleged gunman burst into a Midtown Manhattan office building shooting victims at random.

Four people were killed, including an off-duty New York City police officer, when a gunman opened fire in an office tower before fatally shooting himself, officials said.

New York City Mayor Eric Adams says the shooting is very 'painful' for the city and law enforcement family on 'The Story.'

Five people, including a New York City police officer, died in a shooting in Manhattan. Suspected gunman Shane Devon Tamura died of a self-inflicted gunshot wound, officials said.

YPSILANTI TWP., MI — A 53-year-old man is still in critical condition after a shooting that killed another man last week. Police have been unable to speak with the man, shot around 10:36 p.m. July 23, because of his condition, Washtenaw County Sheriff’s Cmdr. Eugene Rush said Tuesday, July 29.

Arriving officers found 11 people shot including a 27-year-old man pronounced dead at the scene, Schierbaum told reporters during a late-morning news conference. The other 10 victims included an 18-year-old man who was taken to a hospital in critical condition.