A lone gunman killed 4, including an NYPD officer, at a Park Avenue skyscraper in Midtown, New York City, during Monday evening rush hour, before dying from a self-inflicted wound. The shooting incident occurred at a Park Avenue skyscraper that houses the Blackstone investment firm and the headquarters of National Football League (NFL). The assailant, identified as Shane Devon Tamura, was heavily armed and left a suicide note expressing grievances with the NFL and claiming CTE. This incident underscores ongoing concerns regarding active shooter events in the US, prompting increased focus on corporate security measures, including enhanced protocols, employee training, and mental health support, to mitigate such threats.