Shooter frequently visited Columbia mall, police say
Photos: Police: 3 dead after shooting at Maryland mall
Maryland mall shooting caught on video
2 days after shooting, Maryland mall reopens - The Columbian
Three Dead in Shooting at Maryland Mall; Police Call the Episode Isolated - The New York Times
At least 3 people dead after shooting near Maryland shopping center, police say
Teens charged after shooting at St. Charles Towne Center
Maryland mall workers well trained for shooting
Three confirmed dead in Maryland mall shooting – New York Daily News
Three dead in Maryland mall shooting spree
Pictures: Scenes from the fatal Maryland mall shooting