Authorities are investigating the death of a Santa Barbara County jail inmate. Sheriff’s Office officials say at around 4:30 Sunday afternoon, custody deputies found Hector Higareda unresponsive in his cell at the main county jail complex. Efforts by jail personnel and paramedics to resuscitate Higareda were unsuccessful. The 38 year old Santa Maria man had been housed in a jail cell by himself. An autopsy is pending, but officials say it was a suicide. He was serving a year sentence related to a domestic dispute incident, and was scheduled to be released in December.