An NFL employee seriously injured in Manhattan shooting that killed four

A National Football League employee sustained serious injuries in a shooting incident on Monday at a midtown Manhattan building that houses the NFL's offices, along with several prominent financial firms. Commissioner Roger Goodell confirmed the incident in a memo sent to all employees.

Authorities reported that four individuals were killed in the shooting at 345 Park Avenue, including an off-duty New York City police officer. Another person remains in critical condition.

"One of our employees was seriously injured in this attack. He is currently in the hospital and in stable condition," Goodell stated in the memo, which was obtained by ESPN. "NFL staff are at the hospital, and we are supporting his family. We believe that all of our employees are otherwise safe and accounted for, and the building has nearly been cleared."

Goodell further announced that there would be "increased security presence" at the league's offices "in the days and weeks to come." He advised New York-based employees to work remotely on Tuesday or to take the day off, prioritizing their well-being.

"Every one of you is a valued member of the NFL family," Goodell wrote, extending support to his staff. "We will get through this together."

Police have identified the gunman as Shane Tamura of Las Vegas, confirming he died by suicide. Police Commissioner Jessica Tisch stated at a news conference that Tamura had a "documented mental health history," though the motive behind the attack remains unknown.

"We are working to understand why he targeted this particular location," Tisch added.

According to police sources who spoke to ABC News on Tuesday, Tamura was found with a three-page note claiming he suffered from CTE (Chronic Traumatic Encephalopathy) and requested that his brain be studied. However, sources clarified to ABC that references to the NFL within the note were vague. CTE, a degenerative brain disease linked to repeated head trauma, can only be definitively diagnosed through a brain autopsy.

The New York City Fire Department confirmed that emergency crews were dispatched to the Park Avenue office building around 6:30 p.m. following reports of a shooting. NFL employees inside the building were instructed to shelter in place, as reported by ESPN's Jeff Darlington. The NFL's offices are situated on floors five through eight of the 44-story building.

In addition to the fatalities and critical injuries, four other individuals sustained minor injuries while attempting to flee the chaotic scene. New York City Mayor Eric Adams commented that officials are still "unraveling" the full details of the tragic event.