RAPID CITY, S.D. (AP) — Rapid City police have a suspect in custody in the early morning shooting death of a man.

Authorities say the 20-year-old male suspect was arrested on drug and alcohol charges at the scene when officers responded to a report of an assault about 12:10 a.m. Monday and found the victim's body. The suspect is from Rapid City.

A 20-year-old Sioux Falls woman who returned to the scene while police were there also was arrested on drug and alcohol charges.

Police Capt. James Johns says all of the people knew one another, and the death was not a random act of violence.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

More From KXRB