CINCINNATI (AP) — A 22-year-old man has pleaded guilty to fatally stabbing his grandmother in Cincinnati.

WKRC-TV reports Isaiah Zellers entered his plea Thursday to a murder charge in connection with the death of 71-year-old Chesney Shaw.

Police were called to the scene of the stabbing May 27. Authorities say Shaw died at the home.

Police have not released information about a potential motive for the stabbing.

Zeller has been sentenced to 20 years in prison.