Security expert warns mourners at Kirk memorial service to stay alert

As security preparations intensify for Charlie Kirk’s memorial service in Arizona, a former NYPD detective and security consultant warns mourners to remain alert.

“Pull your face out of your phone, put it in your pocket. Pay attention,” Pat Brosnan urged. 

The memorial, set for this weekend at State Farm Stadium, is expected to draw an enormous crowd. Officials estimate that more than 100,000 people may gather in and around the venue, including attendees inside the 63,000-seat stadium and overflow areas outside.

“From the moment you arrive … have your eyes wide open. … Who’s to your right, who’s to your left, who’s behind you? What are they doing?” Brosnan told Fox News Digital. “Eyes in the backs and the sides of your head.”

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According to a law enforcement bulletin obtained by ABC News, authorities are “tracking several threats of unknown credibility.”

“Violent extremists and unaffiliated lone offenders may view the memorial service or related events as attractive attack targets due to the attendance of these individuals, other senior U.S. government officials, state and local government officials, and political activists and due to major international media attention,” the memo reportedly says.

The Department of Homeland Security has designated Kirk’s memorial service a Level 1 Special Event, the highest possible rating, matching Super Bowl-level security planning. 

Officials state this designation is “one step below National Special Security Event (NSSE), which would be Olympic security or inauguration.” 

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Security measures are being put in place at State Farm Stadium for Sunday’s memorial service for Charlie Kirk in Glendale, Ariz., Friday, Sept. 19, 2025. Kirk was assassinated earlier this month in Orem, Utah. (Derek Shook for Fox News Digital)

Among those expected to pay respects are President Donald Trump, Vice President JD Vance, Secretary of State Marco Rubio and other prominent political figures.

The U.S. Secret Service is now the lead agency, coordinating efforts across state and local…