Chilling clip emerges of NYC gunman Shane Tamura

Here’s everything we know about the football player turned gunman who opened fire inside a Midtown Manhattan office tower.

The gunman who opened fire inside Midtown Manhattan office tower has been identified as Shane Tamura, a 27-year-old licensed private investigator from Las Vegas who once dreamed of a life in football.

He arrived in Manhattan by car on Monday and walked into 345 Park Avenue with a concealed weapon permit issued by the Las Vegas Sheriff’s Department.

What followed was a terrifying and targeted shooting spree that police believe was premeditated.

“It appears that he knew it would be his last stand,” said CNN chief law enforcement analyst John Miller, a former NYPD deputy commissioner.

The NYC gunman who has been identified as Shane Tamura.

CCTV of the NYC gunman.

“He fully intended to shoot his way through the lobby and make his way to that target – whatever that might have been.”

The building, home to the NFL’s headquarters and Blackstone offices, became the scene of a major lockdown.

While the league’s offices are housed in the tower, sources confirmed Tamura was not on the NFL floor and that no known connection has yet been established between the shooter and the sports organisation.

However, Tamura appears to have been a keen football fan and player.

Tamura grew up in Hawaii, where he attended high school and began playing the sport.

He was a promising football player in junior varsity.

In a video posted online, Tamura can be heard giving a post-game interview in which he spoke of his victory with the Granada Hills football team.

Shane was instrumental in his teams victory after scoring several touchdowns.

“We were down 10-0, stay disciplined came together as a team,” he said. “Couple of touchdowns.”

He eventually relocated to Las Vegas, where he earned a private investigator’s license and obtained a concealed carry permit to carry firearms, both legally granted through Nevada’s Sheriff’s Department.

The latter part of Tamura’s life remained private.

Tamura appears to have been a keen football fan and player.

Investigators are now urgently combing through his car, phone, and computer in search of answers to try and work out what stressors or perceived injustices led him to carry out the deadly shooting.

“Police want to know what brought him to that building, who or what the target was, and what the grievance or motive behind it might have been,” Miller explained.

“These cases often involve people who experience a downfall and begin to blame others – bosses, institutions, society at large.

“Then they decide to get even with everybody, even though in most cases, the problem is usually them,” Miller said.

Miller said shooters like Tamura often spiral quietly, building a world of resentment that no one sees until it erupts in tragedy.

“They blame their problems on other people and entities,” he said. “Then they decide to get even – with the world, with everyone – even though the problem usually begins and ends with themselves.”

No motive has yet been officially released, but police believe he was suicidal.