On Mother’s Day weekend 2017, 23-year-old Tanna D. Gardner was fatally shot on Interstate 95 in Richmond, Virginia. Gardner was a passenger in a car with 26-year-old Sharayne Danielle Nichole Holland; both women were killed in the attack as they were returning from a graduation celebration in the early hours of May 14.

Reports say an argument at a downtown party escalated and continued onto the highway. Another vehicle pulled alongside the victims’ car on I-95 and a gunman opened fire, with investigators recovering at least 72 shell casings at the scene. It is unclear whether Gardner and Holland were the intended targets.

Both families issued public appeals and a combined reward of $50,000 has been offered by the families and the FBI for information leading to an arrest and conviction. Virginia State Police continue to investigate; no arrests have been announced.

If anyone has information about the shooting or the vehicle involved, please share it with the investigators handling the case.