FILE - A security agent walks alongside a barrier surrounding Marjory Stoneman Douglas High School, July 5, 2023, in Parkland, Fla. Demolition of the building where 17 people died in the 2018 Parkland school shooting is set to begin, as crews will begin tearing down the three-story building at the high school on Thursday, June 13, 2024. (AP Photo/Rebecca Blackwell, File)