On the evening of Tuesday, February 21, 2017, 41-year-old Mark Hubbard Hall was shot and killed in Rabun, near Bay Minette, Alabama, following a family dispute. A machinist by trade, Hall was a married father. Earlier that day he had reportedly been disciplining his 12-year-old daughter, an action the girl’s grandfather, 64-year-old Hubbard Junior Hall, judged to be excessive.

The confrontation between father and grandfather escalated and ended when Hubbard Junior Hall fatally shot Mark Hall. Authorities were called to the scene and the elder Hall was arrested and charged with murder; he was held on $50,000 bond.

If anyone knew Mark Hall or witnessed events in Rabun on February 21, 2017, please share what you remember with investigators.