COUNCIL BLUFFS, Iowa (AP) — A Council Bluffs man has pleaded guilty to playing a role in his adult stepbrother’s abuse as part of a deal with prosecutors. KETV reports 23-year-old Ryan Smith pleaded guilty Tuesday to a misdemeanor charge of being an accessory to a crime. He was originally charged with kidnapping.

Prosecutors say Smith’s mother 46-year-old Rebecca Beyer was convicted earlier this month of abusing her 20-year-old mentally disabled son. She’s awaiting sentencing. The man ran away from home in the spring of 2013. Prosecutors have said he was starved at times, chained with a dog leash and had scars from burns.

Smith was fined $625 and ordered to serve two years of probation. He also received a 180-day suspended jail sentence.