Jacksonville Police Arrested Suspect in 2023 Double Homicide
Jamaal Hameen faces murder charges for a gang-related shooting that left two men dead on Kylan Drive.
Updated on Sept. 29, 2026 in Crime — General
Jacksonville police have arrested 31-year-old Jamaal Hameen for his alleged involvement in a 2023 double homicide. Investigators identified the shooting as a $20,000 gang-related hit that claimed the lives of Antonio Tillie Jr. and Bryant Grund.
Why it matters
The arrest marks the fourth development in a case involving a targeted attack on a Jacksonville resident. Authorities allege the incident was a contract killing, underscoring the lethal nature of local gang-related violence.
Jamaal Hameen faces two counts of second-degree murder and one count of accessory after the fact, following his arrest while already in jail on unrelated charges. Ju'Quan Mills remains in custody awaiting trial for his role in the shooting.
The players
Jamaal Hameen
The 31-year-old suspect is currently facing charges for two counts of second-degree murder related to a 2023 shooting.
Antonio Tillie Jr.
The 19-year-old victim was the primary target of a gang-related hit orchestrated in Jacksonville.
Bryant Grund
The 31-year-old victim worked as an Uber driver and was killed alongside his passenger during the 2023 incident.
Diamond Harris
The individual pleaded guilty to murder charges in 2024 after luring the target to the site of the shooting.
Ju'Quan Mills
The suspect is currently awaiting trial on allegations that he shot Antonio Tillie Jr. during the incident.
The details
The shooting took place on Kylan Drive near Moncrief Road, where victims Antonio Tillie Jr., 19, and Uber driver Bryant Grund, 31, were killed while inside a vehicle. Diamond Harris, who previously pleaded guilty in 2024 to luring the target to the site, was a central figure in the orchestration of the attack.
Timeline
October 6, 2023: Antonio Tillie Jr. and Bryant Grund were killed in a shooting.
2024: Diamond Harris pleaded guilty to two counts of second-degree murder.
September 23, 2026: Jamaal Hameen was arrested for the homicide case.
Legal Context
This arrest follows the investigative timeline established after the 2023 Jacksonville shooting on Kylan Drive. The case represents an ongoing effort by local law enforcement to dismantle organized violence networks through sequential prosecutions.
The arrest of a suspect currently in custody provides closure to a violent 2023 incident that occurred in the Moncrief Road area. This development underscores the continued police focus on resolving cold cases linked to gang activity in local neighborhoods.
The takeaway
Targeted violence involving contract hits remains a significant challenge for urban safety and law enforcement. Residents should stay informed on local crime trends and report suspicious activity to authorities to assist in maintaining community security.
Further reading
For more information on local investigations, visit the Crime — General section.
Source note: This article includes information reported by News 4 Jax.
