The Box Elder Sheriff’s Office and the FBI have named a neighbor of teen farmer Dylan Rounds as a suspect in the 19-year-old’s disappearance.

James Brenner, 59, was arrested last month on an unrelated federal firearms charge and is being held in the Weber County Jail, as CrimeOnline previously reported.

According to court documents filed in that case, Brenner was “squatting” on land about five miles from Rounds’ farm that was used collectively by its several owners and others, including Rounds, who used a shelter on that property for his grain truck.

Brenner was “known to have contact with” Rounds, the documents say.

Rounds was last heard from on May 28 when spoke with his grandmother by phone and told her he was “putting the grain truck in a shelter.” He hasn’t been seen or heard from since, but his truck — and his boots — were found were located about five miles away from his camper.

“The investigation is not complete and remains active,” officials said Thursday in a press release, according to KSTU. “Law enforcement investigators are continuing to work to locate Dylan and find answers.”

No other information was released.

Rounds’ family has offered a $100,000 reward for his return.

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[Featured image: Dylan Rounds/handout]