Authorities evacuated a busy shopping mall near Colorado's Columbine High School after finding two propane tanks and a pipe bomb on Wednesday—the twelfth anniversary of the deadly shooting that killed 13 and wounded scores of others. A spokeswoman for the Jefferson County Sheriff’s Office said a small fire broke out in the mall’s food court around noon, and when firefighters arrived, they discovered propane tank bombs were the origin of the fire. About 10,000 people were evacuated from the mall. Columbine High School has no school on the anniversary of the attack, and local schools were put on lockdown Wednesday following the mall incident. Due to the similarity of the explosives to those at Columbine High School in 1999 and the date of the attack, the FBI was called to the scene and are viewing the incident as “a case of domestic terrorism.” They are now searching for a "person of interest" who was caught on camera enterting a stairwell not typically used by the public.