The memorial event at the State Farm Stadium in Glendale, Arizona, has been designated as a Special Event Assessment Rating (SEAR) Level 1 event by the Department of Homeland Security, meaning it will have the same level of security as the Super Bowl or the Boston Marathon.
A Sept. 19, 2025, drone view of workers installing a photo of slain conservative commentator Charlie Kirk is shown ahead of a memorial service to be held for him on Sept. 21, at State Farm Stadium, in Glendale, Arizona.
Cheney Orr/Reuters
Local officials said they wouldn’t be surprised if more than 100,000 people gather for the memorial.