Texas mall shooting victims include security guard, young sisters
Searching for Motives in Mass Shootings
What We Know So Far About the Mass Shooting in Maine
Gunman kills 8, then self at Omaha mall – East Bay Times
Nebraska man who shot inside Target got rifle 4 days earlier
Gunman kills 8, then self at Omaha mall – East Bay Times
Officer shoots man on bus after he stabs Lincoln officer
9 dead in Omaha mall shooting – The Denver Post
From 'Troubled' to 'Killer,' Despite Many Efforts - The New York Times
UPDATE: Target suspect identified, purchased rifle 4 days prior to
Teen arrested on murder warrant in Nebraska mall shooting
Lincoln man arrested in standoff was suspect in county shooting