The Hillsborough County Sheriff's Office has arrested two individuals in separate investigations into fatal fentanyl overdoses, resulting in first-degree murder charges.
Although the cases are unrelated, both investigations were conducted by the Hillsborough County Sheriff's Office's Opioid Overdose Investigations Section and resulted in charges for unlawfully distributing fentanyl that led to the victims' deaths.
Investigation One: Robinson Stlouis
On October 17, 2025, deputies responded to a death investigation in the parking lot of the Community Thrift Store on North Nebraska Avenue in Tampa after a passerby reported a woman who appeared to be in distress inside a vehicle. When deputies arrived, they found Kira Rogers, 54, deceased inside the vehicle. Detectives located numerous items of drug paraphernalia and a quantity of fentanyl surrounding Rogers.
Because the circumstances of the death were consistent with a drug overdose, HCSO's Opioid Overdose Investigations Section assumed the investigation.
Through the course of the investigation, detectives determined Rogers had met with Robinson Stlouis, 39, on the evening of October 16, 2025, and obtained fentanyl from him.
Later that same day, detectives located Stlouis and conducted a traffic stop. He was arrested on unrelated traffic offenses. Detectives also found him in possession of fentanyl.
At that time, Stlouis was charged with:
- Possession of a Controlled Substance
- Unlawful Alteration of Motor Vehicle Registration Certificates, Plates, or Stickers
- Driving With License Canceled, Suspended, or Revoked (3rd Offense)
- Operating an Unregistered Vehicle
On December 15, 2025, it was determined that Rogers' death was caused by fentanyl intoxication. Toxicology results revealed the concentration of fentanyl in her system was approximately eight times higher than a lethal dose.
An arrest warrant was obtained for Stlouis, and on August 7, 2026, detectives arrested and charged him with Murder in the First Degree Which Resulted From the Unlawful Distribution of a Controlled Substance.
Investigation Two: Haley Williams
On December 30, 2025, deputies responded to a death investigation at a residence in the 9000 block of Hickory Circle in Tampa. Because the death appeared to be consistent with a drug overdose, HCSO's Opioid Overdose Investigations Section assumed the investigation.
Detectives determined the victim, Olivia Williams, 22, had met with and obtained what was believed to be oxycodone pills from Haley Williams, 25.
Despite sharing the same last name, the two are not related.
On December 31, 2025, detectives located Williams and conducted a narcotics operation. During the operation, Williams was found to be in possession of additional adulterated pressed fentanyl pills and was arrested. A search warrant at her residence led to the seizure of approximately 60 grams of pressed fentanyl pills, a firearm, and drug paraphernalia.
Williams was initially arrested and charged with:
- Possession of a Controlled Substance
- Delivery of a Controlled Substance
- Trafficking in Fentanyl (28 Grams or More)
As the investigation continued, it was determined that the victim's death was due to fentanyl toxicity. Toxicology results revealed the concentration of fentanyl in the victim's system was approximately 14 times higher than a lethal dose.
Additional forensic testing confirmed the pills sold by Williams contained no oxycodone and were, in fact, pressed fentanyl pills.
An arrest warrant was obtained for Williams, and on August 6, 2026, detectives arrested and charged her with Murder in the First Degree Which Resulted From the Unlawful Distribution of a Controlled Substance.
"Fentanyl disguised as legitimate prescription medication is one of the deadliest threats facing our community," said Sheriff Chad Chronister. "Whether it's sold as counterfeit pills or in its pure form, fentanyl continues to steal lives. These two investigations demonstrate our unwavering commitment to identifying those responsible, building strong cases, and ensuring drug dealers whose actions result in death are held fully accountable."
Both investigations remain active. The Public Affairs Office will provide any updates.
