In the early hours of Christmas Eve 2016 in Stone Mountain, Georgia, 34-year-old Carlos Kaigler was shot eight times following an argument on Sharonton Way and later died at DeKalb Medical’s Hillandale campus. A man drove Kaigler to the hospital in a Chevrolet Tahoe, gave staff his name, and left; a Tahoe later returned with Kaigler’s girlfriend and another woman, who were questioned but not charged.

Investigators found someone had attempted to clean the driveway where the shooting occurred, using bleach to remove blood. Weeks after the killing, 47-year-old Jonathan Barton was arrested and charged with murder; another 47-year-old, Benjamin Taylor, was arrested and charged with tampering with evidence in connection with the cleanup. The motive and the precise circumstances of the argument that led to the shooting remain unclear.

If anyone knew Carlos, witnessed the argument, or has information about the events on Sharonton Way that night, please share what you know.