This undated photo provided by the Howard County Police Department shows Darion Marcus Aguilar posing with a shotgun. Aguilar killed two people at a Maryland mall on Jan. 25, 2014, before turning the ... more 
This undated photo provided by the Howard County Police Department shows Darion Marcus Aguilar posing with a shotgun. Aguilar killed two people at a Maryland mall on Jan. 25, 2014, before turning the gun on himself. Police said Wednesday, March 12, that he acted alone, had no connection with his victims and may have had a fixation with the 1999 Columbine High School shooting. (AP Photo/Howard County Police Department) less 
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Associated Press | Photo By Howard County Police Department
Wed, Mar 12, 2014 4:50 PM EDT