‘Happy Face’ serial killer nearly confessed brutal murders to teen daughter: ‘You’ll tell the authorities’

Melissa G. Moore was having breakfast with her father, Keith Jesperson, at a diner when he almost exposed his secret double life.

The high school student, who was gearing up to get her driver’s license, was gushing about getting her freedom. She was also excited to spend time with her father, a trucker who, at that point, was divorced from Moore’s mother.

"I was on the verge of turning 16," Moore recalled to Fox News Digital. "He made an unannounced visit and asked my siblings and...