RAPID CITY, S.D. (AP) — Rapid City police say they are treating the death of a 13-month-old boy as a homicide.

The Rapid City Journal reports that Damien Lee was found dead by police officers and paramedics at around 3 a.m. on Nov. 9, in the home of his parents.

Police say an autopsy revealed that he died from blunt force trauma.

Authorities say the boy's mother, 20-year-old Lacquette Lee, and father, 21-year-old Joshua Bowker, were at the home with a friend when Damien died.

No one has been arrested.

The boy's funeral was to be held Saturday in Eagle Butte.

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