MARTIN, S.D. (AP) — A father and his adult son have pleaded guilty to fatally shooting a man in Martin in 2016.

The South Dakota Attorney General's Office says 57-year-old Daniel Ceplecha and 23-year-old Rangler Ceplecha each pleaded guilty to first-degree manslaughter in the death of Moses Red Bear.

Firefighters found Red Bear's body while extinguishing a grass fire in western Bennett County in November 2016. Earlier in the day police investigated a possible homicide at a residence in Martin, but didn't find a body.

The father and son face a sentence of up to life in prison. Sentencing is June 6.