Police have released the security video showing how a man, who threatened to open fire at a Des Moines school, got inside.
The footage shows Ryan Collier walking right in to Merrill Middle School without encountering any locked doors. Collier is then seen fleeing the school a few minutes later.
Principal Alex Hannah followed Collier and showed police, who were already on the scene, where Collier was heading.
District administrators say they've learned from the incident. But one positive is that lockdown drills work.
They say when police arrived, they thought the building was abandoned because the halls were so empty.
Another lesson taken from the incident is that the district can improve communication.
“We`ve identified some ways we`re going to streamline our communication between the school the security staff and the administration,” district spokesperson Phil Roeder said. “What are the ways we can provide support for people who are on the front lines, if you will.”
Roeder says the entrance to Merrill will be upgraded next year to include a lobby that will force visitors to go directly to the front office. The addition will prevent visitors from entering hallways or classrooms unescorted.