The contracted security guard left his gun in the bathroom reserved for teachers. A teacher entered approximately 56 seconds after the guard left and found it.
Two parents and their two sons died in Texas in an apparent murder-suicide three weeks after their daughter drowned in a swimming pool, according to CBS Texas.
Texas police have discovered a tragic scene, with four individuals dead in a residence. Investigators are currently treating the incident as an apparent murder-suicide.
4 Texas family members found dead in suspected murder-suicide nydailynews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nydailynews.com Daily Mail and Mail on Sunday newspapers.