(KUTV ) -- Jerrod William Baum, 41, is well known to law enforcement but residents in the Mammoth, Utah neighborhood said they barely knew him and his girlfriend, Morgan Henderson.
Baum was arrested Thursday for alleged kidnapping, stabbing and disposing of the bodies of Brelynne “Breezy” Otteson, 17, and her boyfriend, Riley Powell, 18, by throwing them down a mine shaft.
Court documents state Baum told Henderson he never “killed an innocent before,” but prior arrests when he was a teenage boy paint a different picture.
When Baum was 15-years-old he was tried as an adult for a crime spree with an attempted murder charge.
He took a plea deal for going into a Burger King and firing at employees while trying to rob it. The murder charge was dismissed without prejudice.
Baum's arrest in connection with the two bodies discovered on a ledge 100-feet down a 1,800-feet mine shaft believed to be Otteson and Powell, shocked residents in Eureka, just outside of Mammoth.
“We are a small town and somebody comes into town, and they have murderers all of a sudden,” said Kathy Garbett, Eureka resident. "That's scary; it's very scary."
Neighbors said Baum and Henderson were living with his dad in a Mammoth home, but that he hadn't lived there that long, and they don't know much about him.
“I don't know hardly anything about him, I can't say hardly anything nothing really,” Garbett said.
According to court documents, Baum - a restricted person - was charged with being in possession of a firearm a second-degree felony in February.
He has now been booked on suspicion of aggravated murder, kidnapping, and abuse of a dead human body among other charges.
“It's disgusting, it's disgraceful for those young kids to be treated like that,” Garbett said.
The Utah County Sheriff's Office said a second person is likely to be charged in the case, but that information has not been released as of yet.