South Dakota prison inmate dies

Courtesy of KOTA

SIOUX FALLS, S.D. - Authorities say a South Dakota prison inmate has died.

Garreth Gannon has died following an illness. Authorities said he passed away in the infirmary of the Jameson Annex to the South Dakota State Penitentiary on Wednesday.

He was serving life sentences for first-degree murder and first-degree robbery from Pennington County.