The 19-year-old gunman who killed two people at Columbia Mall in Maryland in January was fascinated by the 1999 shooting at Columbine High School in Colorado—to the point of dressing like one of those gunmen, the Associated Press reports.
Investigators say they found thousands of searches on Darion Aguilar's computer relating to mass murder, school shootings, guns and explosives, AP notes. He was also looking up mental-health resources and had told a doctor that he was hearing voices.
On Jan. 25, Aguilar opened fire after exiting a dressing room at the Zumiez skateboarding and snowboarding store, killing employees Brianna Benlolo, 21, and Tyler Johnson, 25. He took his own life afterward.
Police think Aguilar waited more than 40 minutes inside the mall before starting his rampage in order to coincide with the time of day the shooting at Columbine began. He also wore clothes similar to those worn by one of the students involved in the 1999 massacre. Police have not, however, found any reason to believe that he knew his two victims.
Read more at the Associated Press.