The final moments before the death of missing college student Mollie Tibbetts were revealed by an illegal immigrant accused of murdering her, investigators said.
Family members and investigators knew Tibbetts, 20, had been jogging on July 18 before she disappeared but data from her computer led them to believe she had returned to the home of her boyfriend, where she'd been dogsitting while he was away on a work trip, before she vanished.
