Lake Andes man sentenced for first-degree manslaughter

An eighteen year old man from Lake Andes has been sentenced to 85 years in prison after earlier pleading guilty to one count of first-degree manslaughter in the stabbing death of another man in May 2024.

Mackenzie Antelope was sentenced Friday in Charles Mix County Circuit Court. He was sentenced to 85 years in prison, with 35 years suspended.

“This lengthy sentence is justified for such a heinous crime” said Attorney General Jackley. “Law enforcement and prosecutors are to be commended for their work on this case, and the victim and the victim’s family remain in our thoughts and prayers.”

Quinlan Ream was killed in the May 21 2024 stabbing in a Lake Andes motel. A second person also was injured in the same incident.

South Dakota’s Division of Criminal Investigation (DCI) and the Charles Mix County Sheriff’s Office investigated the case. The prosecution was handled by the Attorney General’s Office and the Charles Mix County State’s Attorney’s Office.