The FBI is still investigating a pig farmer in connection with missing Iowa student Mollie Tibbetts.
Wayne Cheney was quizzed for a second time at his Deep River Farm with more interviews expected today.
The probe comes after police found a red shirt that could belong to the student in nearby fields.
So far, Cheney has refused to take a polygraph but has allowed searches of both his property and phone records.
The farmer claims he has nothing to hide, despite having two previous stalking charges. He has not been charged.
Tibbetts has been missing since last being spotted on a jog on the evening of July 18.
The 56-year-old pig farmer told a local Iowa television station about being quizzed at a local fire station.
"No it wasn't the FBI' at the station 'I don't know who those two guys were.
"They questioned me for a couple hours, they questioned me. I don't even remember what they asked me," he revealed.
"It was a waste of time that I thought, I'm done." - the pig farmer told reporters before walking inside his home.
The investigation into the missing 20-year-old continues.
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