Ryan Herren was arrested after 6 p.m. at Brenchley Apartments on Third West in Rexburg.
The victim of the attack was taken to the hospital after the beating. Herren is accused of entering the apartment and beating the victim without any sign of why, the victim said.
In addition to beating the man, Herren admitted to smashing the window and tail light of the victim’s car, a Buick LeSabre, with a hammer on his way out of the apartment.
Herren is on parole in Ada County for a controlled substance charge. He is awaiting a court hearing in the Madison County Jail.
For more information, visit East Idaho News’ coverage of the event.