Antonio Dominic Tillie Jr. was a 19-year-old Black man from Jacksonville, Florida, and a former student of Raines High School who was involved in music and remembered by some as funny and a role model. On October 6, 2023, he was found shot to death in the backseat of a Mini Cooper on Kylan Drive near Moncrief Road. The vehicle’s driver, 31-year-old Uber driver Bryant Grund, was also found fatally shot; investigators determined Grund was an innocent bystander.

Detectives say Antonio was the target of a gang-related, murder-for-hire plot with a $20,000 bounty on his life. He had been lured to the meeting by a woman he had been communicating with via Instagram and text, believing he was going on a date. Police arrested 22-year-old Ju’Quan Mills and 23-year-old Diamond Harris in connection with the double homicide, alleging Harris arranged the meeting and Mills carried out the shooting; investigators say Mills collected half the bounty, $10,000.

Mills was charged with murder and pleaded not guilty at arraignment. Harris’s initial accessory-after-the-fact charge was later upgraded to two counts of second-degree murder, and she pleaded guilty to her role in the deaths of Antonio Tillie and Bryant Grund. A third suspect was also arrested. Does anyone have information about Antonio’s movements that night or the people he was communicating with beforehand?