TUCSON (Monday, February 27, 2017) – Inmate Rick Kosterow, 57, ADC #226146, died February 24 at Banner University Medical Center South from apparent natural causes. He was transported off-site to the hospital on February 21.
Kosterow was serving life in prison out of Yuma County for two counts of 1st degree murder.
He was most recently housed at ASPC – Tucson.
All inmate deaths are investigated in consultation with the county medical examiner’s office.