"Very reluctantly, I'm being told I sort of need to do this," said Rob Tibbetts. "We've called this sort of a half-time, a break."

Mollie Tibbetts' father told TV9 it's hard heading back to his home in California. That's as officials still lack the key piece of evidence that might unlock the secret to the 20-year-old's disappearance.

Mollie Tibbetts was last seen July 18 in her hometown of Brooklyn. That's one month ago today. The University of Iowa student was on a jog and had been dog sitting at her boyfriend's brother's house.

Authorities have received over 2300 tips in their search to find her. As of yet, none have led to a definitive answer. Volunteers and law enforcement spent the last four weeks searching Mollie's hometown and areas around it, including rural farmland. A reward to bring her home safely is more than 366,000 dollars. While the search continues, Tibbetts' loved ones are trying to return to their daily lives. Her father, who works and lives in California, returned home Saturday.

Rob Tibbetts told TV9, he feels ambivalent but it wasn't really his choice and probably for the best. He said law enforcement has been encouraging the Tibbetts to all return to their day-to-day lives and leave them in charge of the case.

Rob Tibbetts said he moved his sons into their college this week and she was on their minds. That's because they passed by where Mollie was going to move in. As bittersweet as the thoughts were, he's still confident they're going to bring her back home and she'll pick up from where she left off.

"I still feel that way, we all feel that way, that's why it's difficult for me to knowing there's a good chance that we're going to bring her

home," said Rob Tibbetts. "I want to be there when she arrives."

Rob Tibbetts said he's coming back the moment there's a development on the investigation and wants to be an active participant in any search.

Rob Tibbetts said he feels like Iowa is saturated with tips now wants the word spreading further across the United States until she's found.

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