TUCSON, AZ (Tucson News Now) - Disturbing behavior has been kept under wraps for years.
Children who crossed the border illegally, some as young as 6 years old, were locked up and violated by those hired to guard them.
KOLD Investigates looked into Southwest Key, the controversial holding facility located right here in Tucson.
We uncovered the dark crimes and secrets hidden inside the facility's walls. Don't miss our full investigation at 10 p.m. Thursday.