Missing Student Was Likely Doing Homework on Night She Disappeared

Mollie Tibbetts is still missing, nearly two weeks after the 20-year-old University of Iowa student went on a late-night run and disappeared, and her father is pleading for the public's help finding her. "What we need is for people to tell their friends and neighbors that if they saw anything that seemed even remotely out of the ordinary to call the authorities and they will run that down," her father, Rob, tells Good Morning America. "We just need people to think—because somebody knows something and they don’t even know it’s important." The FBI has joined the search for Tibbetts, and police are hoping the FitBit she reportedly "never takes off" might lend some clues. The reward for information leading to her discovery has doubled to $2,000, Newsweek reports.

When she disappeared, Tibbetts was dogsitting at the home of her longtime boyfriend, Dalton Jack, while he was more than 100 miles away, working a construction job. (He is not a suspect in the case.) She sent him a Snapchat photo that appeared to have been taken indoors the evening of July 18; the next morning, a friend of hers from work alerted Jack she had not come in to work or called, and he knew something wasn't right. Family members tell KCCI that evidence shows Tibbetts was doing homework on her computer late in the evening on July 18; while authorities won't comment on a specific timeline, family members say this opens up the possibility that she returned to the home after her run. She was last seen while out running.