An investigation is underway in the morning death of a 71-year-old man in Pleasant Grove.

Rudolphus Wynn was injured at 3:17 a.m. Monday at a residence in the 400 block of 13th Place, according to the Jefferson County Coroner’s Office.

He was pronounced dead on the scene at 3:39 a.m.

Authorities said Wynn sustained sharp force injuries during a reported domestic incident inside his home.

His 75-year-old wife is in custody awaiting formal charges.

This is the city’s first homicide since 2016.

No other details have yet been released.