Napa County Sheriff's Capt. Steven Blower says the sheriff's office is investigating the 31-year-old inmate's death.
says the sheriff's office doesn't run the county jail.
says Kent did not have any obvious injuries and there were no signs of foul play.
An autopsy will be conducted Friday.
says Kent had been in custody since Feb. 19 and was sentenced Tuesday to a year in the county jail for being under the influence of a controlled substance and violating his