Camp Mystic, a 100-year-old girls' summer camp in Texas, is facing criminal investigation after 27 campers and counsellors drowned in devastating flood waters from the Guadalupe River last July, making it the deadliest summer camp disaster in US history. The investigation could result in charges including manslaughter, child abandonment and negligent homicide against the camp's operators and officials.

Texas Ranger documents allege that Camp Mystic had inadequate emergency protocols, insufficient adult supervision in some cabins, failed to conduct evacuation training, and ignored monitored flood warnings by not relocating children from low-lying areas to safety. The unaccredited camp's staff lacked communication devices—most counsellors did not have walkie-talkies—and a no-screen policy prevented them from receiving weather alerts. Camp Mystic's owner Richard 'Dick' Eastland, aged 70, was among those who died attempting to rescue the girls. The camp has maintained the flood was unforeseeable and denies liability, whilst grieving families have pursued lawsuits and demanded accountability and answers about their children's deaths.