Pinellas County detectives are probing the death of a 28-year-old man held at the county jail after staff found him unresponsive in his cell Friday afternoon. Deputies and on-site medical staff moved quickly with life-saving measures until local paramedics arrived, but the man was pronounced dead at the jail a short time later.
What officials say
Investigators say Robert Sunmonu had been housed at the Pinellas County Jail since May 13 under a U.S. Marshal hold and had documented preexisting medical conditions. Jail staff discovered him unresponsive inside his cell at about 11:30 a.m., and he was pronounced dead at 12:37 p.m. Officials report that staff attempted resuscitation and that detectives have not found signs of physical injury. According to Tampa Free Press, Sunmonu’s next of kin have been notified and the Robbery & Homicide Unit is leading the investigation.
Investigation underway
The Pinellas County Sheriff’s Office Robbery & Homicide Unit routinely handles in-custody deaths, working alongside the medical examiner while detectives pull jail records, video and medical information. That step-by-step approach aligns with previous Sheriff’s Office releases about deaths at the jail. Similar recent in-custody deaths in neighboring counties have also triggered homicide-unit reviews, underscoring how local agencies typically handle these cases. For context, the Hillsborough County death this week prompted a similar response from deputies, as reported by the Tampa Bay Times.
Who he was
Court records show Sunmonu was prosecuted in federal court on drug and firearms charges, and an appellate opinion describing his 2019 arrest and 2021 appeal is publicly available. Documents reviewed at Justia outline the case and resulting conviction. Those records address his prior prosecutions but do not shed light on the circumstances of his death inside the Pinellas County Jail.
Authorities say the case remains active and the county medical examiner will determine the cause and manner of death. The Pinellas County Sheriff’s Office has asked anyone with relevant information to contact detectives, and investigators say they have notified Sunmonu’s next of kin. According to Tampa Free Press, detectives are continuing to gather evidence and interview staff as the investigation moves forward.
