Shooting at the Mall of Columbia

Columbia Mall Shooting, William McMahon Howard County police chief William McMahon speaks to reporters at the parking lot of the Mall in Columbia, Md., after a shooting at the mall on Saturday Jan. 25, 2014 in Howard County, Md. Police in Maryland say three people died Saturday in a shooting at a mall in suburban Baltimore, including the presumed gunman. ( AP Photo/Jose Luis Magana)

AP Photo/Jose Luis Magana

Mall Shooting Two people embrace in the parking lot at the scene of a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died at the mall including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Mall Shooting Police stand outside the scene after a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died at the mall including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Mall Shooting Police and law enforcement evacuate The Mall of Columbia after a shooting on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died at the mall including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Mall Shooting Shoppers wait to be evacuated from The Mall in Columbia after a shooting on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died at the mall including the presumed gunman.(AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Mall Shooting A Montgomery County, Md., police officer walks in a parking lot at The Mall in Columbia, Saturday, Jan. 25, 2014, in Columbia, Md., following a shooting that police say three people died at the mall including the presumed gunman. (AP Photo/Manuel Balce Ceneta)

AP Photo/Manuel Balce Ceneta

Columbia Mall Police move in from a parking lot to the Mall in Columbia after reports of a multiple shooting, Saturday Jan. 25, 2014 Howard County, Md. Police in Maryland say three people died Saturday in a shooting at a mall in suburban Baltimore, including the presumed gunman. ( AP Photo/Jose Luis Magana)

AP Photo/Jose Luis Magana

Mall Shooting Mall shoppers are loaded onto shuttle busses and evacuated by police and rescue personnel after a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014, in Columbia, Md. Police say three people died in a shooting at the mall in suburban Baltimore, including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Mall Shooting Shoppers are loaded on to shuttle busses to evacuate The Mall of Columbia after a shooting on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died at the mall including the presumed gunman.(AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Heather Saffield, Chelsea Borschart Howard County police chief William McMahon speaks to reporters at the parking lot of the Mall in Columbia, Md., after a shooting at the mall on Saturday Jan. 25, 2014 in Howard County, Md. Police in Maryland say three people died Saturday in a shooting at a mall in suburban Baltimore, including the presumed gunman. ( AP Photo/Jose Luis Magana)

AP Photo/Jose Luis Magana

Darion Marcus Aguilar In this Jan. 25, 2014, video surveillance photo provided by the Howard County Police Department, Darion Marcus Aguilar approaches a Zumiez skateboarding and snowboarding store in Columbia Mall in Columbia, Md. Aguilar killed two employees store before turning his 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)

AP Photo/Howard County Police Department

Columbia Mall People are evacuated from the Mall in Columbia, Md., after a shooting at the mall on Saturday Jan. 25, 2014 in Howard County, Md. Police in Maryland say three people died Saturday in a shooting at a mall in suburban Baltimore, including the presumed gunman. ( AP Photo/Jose Luis Magana)

AP Photo/Jose Luis Magana

Mall Shooting Police talk in a parking lot outside a Sears store after a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died in a shooting at the mall in suburban Baltimore, including the presumed gunman.(AP Photo/Evan Vucci)

AP Photo/Evan Vucci

APTOPIX Mall Shooting Shoppers are evacuated by police after a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014, in Columbia, Md. Police say three people died in a shooting at the mall in suburban Baltimore, including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Mall Shooting Mall shoppers are loaded onto shuttle busses and evacuated by police and rescue personnel after a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014, in Columbia, Md. Police say three people died in a shooting at the mall in suburban Baltimore, including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci

Columbia Mall Shooting People are evacuated from the Mall in Columbia, Md., after a shooting at the mall on Saturday Jan. 25, 2014 in Howard County, Md. Police in Maryland say three people died Saturday in a shooting at a mall in suburban Baltimore, including the presumed gunman. ( AP Photo/Jose Luis Magana)

AP Photo/Jose Luis Magana

Shoppers are evacuated by police and rescue personnel after a shooting at the Mall in Columbia on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died in a shooting at the mall in suburban Baltimore, including the presumed gunman.(AP Photo/Evan Vucci)

AP Photo/Evan Vucci

The home of Darion Marcus Aguilar of College Park, Md., is seen Sunday, Jan. 26, 2014. Police say Aguilar carried out Saturday's attack with a shotgun at a skateboard shop at the Mall of Columbia before killing himself. Howard County Police Chief William McMahon said investigators are trying to determine whether Aguilar knew either of the victims and whether he had a criminal record. They offered no motive for the shooting. (AP Photo/Ben Nuckles)

AP Photo/Ben Nuckles

Mall Shooting A heavily armed police officer walks on scene after a shooting at The Mall in Columbia on Saturday, Jan. 25, 2014 in Columbia, Md. Police say three people died in a shooting at the mall in suburban Baltimore, including the presumed gunman. (AP Photo/Evan Vucci)

AP Photo/Evan Vucci