TUSCALOOSA COUNTY, Alabama -- A woman faces a murder charge after Tuscaloosa County authorities say she shot and killed her son's boyfriend Monday evening.

Jamie R. Johnson, 36, was pronounced dead at UAB Medical West hospital after he was found suffering from a gunshot wound at the Love's Truck Stop on Alabama 216 near Interstate 20/59 around 6 p.m., according to Tuscaloosa Metro Homicide commander Sgt. Dale Phillips.

Sheriff's deputies and Woodstock police responded to the report of a shooting and found Johnson on the ground and a man and a woman nearby, Phillips said. The man and woman were taken into custody and investigators determined Johnson and the other man had been involved in a long-term relationship.

Authorities believe the three people met at the truck stop to talk and, after a short conversation, the male witness went to his car. Johnson and the woman continued to talk, and when Johnson turned to walk away, the woman pulled a handgun and shot him, Phillips said.

The woman was identified as Anita T. Hill, 51. She faces a charge of murder and is being held in the Tuscaloosa County Jail on a $75,000 bond.