The building at Marjory Stoneman Douglas High School in Parkland, Florida, where a gunman opened fire in 2018, killing 17 people, is set to be demolished on Thursday. Authorities had not torn down the building before because it had been treated as evidence in the trial of the shooter, Nikolas Cruz, and an officer who had failed to intervene, Scot Peterson. Some victims' families wanted the building preserved as a memorial, while others, like Lori Alhadeff, whose daughter died in the attack, wanted it torn down as an important step in the healing process. It was eventually decided that the building would be demolished as it was too dangerous to leave it standing and it could not be preserved as a memorial because it is not permanent and would require it being gutted, which would destroy its current state.