Mollie was dog sitting alone at a home in Brooklyn, Iowa, when she disappeared.
Tibbetts, a 20-year-old from Brooklyn, Iowa, has been missing for two weeks. The latest came Thursday, when police confirmed that a possible sighting of Tibbetts at a Missouri truck stop turned out not to be her.
The mother of a missing Iowa college student is pleading for anyone who may have abducted her daughter to let her go and claim a fast-growing pot of reward money.
Fox News has confirmed search teams were looking through ditches about a mile away from the reserve, near the same farm that FBI investigators were said to have searched for almost two hours last week.
A $172,000 reward is being offered for the safe return of Tibbetts.
Tibbetts, a sophomore at the University of Iowa, went for a jog the evening of July 18 in Brooklyn, Iowa, a close-knit farming community of about 1,500 people where she was staying with Jack for the summer.
"Mollie was a friend to everybody", said Kim Calderwood, her aunt. Police have ruled out Mollie Tibbett's boyfriend, Dalton Jack, as a possible suspect. He said it looked like she took the photo while indoors.
Asked Tuesday if investigators had identified any persons of interest, Kevin Winker, director of investigative operations at the Iowa Department of Public Safety, told reporters: "We are pursuing every lead that is available to us".
"This is a fight for our daughter", Rob Tibbetts said at Thursday's press conference.
The reward was meant to "help facilitate the process of receiving information anonymously that we can use to pay for her or information that would lead to her location", she said. "And yes, I have my moments of complete meltdowns, but it is through this strength that is somehow...and I don't know how...being bestowed on me...that I'm able to get through every morning, every noon, every night".
"We're providing this fund to provide some financial incentive for someone who's otherwise reluctant to come forward", he said. "We are told very little by the authorities for very good reason", he said, noting how police are hesitant to share information with anyone who could be connected to the case.