SEATAC, Wash. (AP) — A Des Moines, Washington, man was arrested for allegedly taking a military member’s luggage, setting it on fire and destroying a 9/11 memorial at SeaTac Airport.

Court documents say the suspect stole luggage that was left unattended on Jan. 30. Officers retraced the suspect’s steps through surveillance cameras, which led them to a stairwell in the airport’s parking garage.

Officers noticed heavy black smoke and could see flames from what appeared to be a fully engulfed fire on the 7th floor.

Firefighters were able to extinguish the fire. Police tracked the suspect through security cameras and arrested him inside the airport.