Grant Parker, a 34-year-old murder suspect, was found hanging himself in his assigned cell at the San Diego Central Jail on March 8, 2026. Despite life-saving efforts, Parker was pronounced dead at a local hospital after being transported to the hospital. Parker was facing charges of murder and assault with force likely to produce great bodily injury. The sheriff's Homicide Unit is conducting an investigation into the death, and the cause and manner of death will be determined by the SanDiego County Medical Examiner's Office. The county has been under scrutiny for years for its high number of in-custody deaths, with an audit by the California State Auditor finding numerous deficiencies in how the sheriff's department provides care for and protects incarcerated individuals.