A Forestville man was convicted Thursday for a second time in the 2006 slaying of his child’s mother during a dispute over child support, prosecutors said.

Fabian Shim, 47, was convicted of first-degree murder in the November 2006 slaying of 26-year-old Reina Lynch, the mother of his then 7-year-old daughter, authorities said. Prince George's County Deputy State’s Attorney Ann Wagner-Stewart said Shim shot Lynch in the head with a shotgun and left her for dead in a Beltsville FedEx facility, where she worked the overnight shift. Less than two weeks earlier, Wagner-Stewart said, Shim and Lynch had gone to a child support mediation session, where Shim was told he would have to pay $590 a month.

Shim had been convicted in 2007 but had to be re-tried because of a mistake made during jury selection, authorities said. Marlyn Evans, Lynch’s mother, said she was “so relieved” that new jurors convicted him again.

“It was so heartbreaking to have to go through another trial,” she said.

Evans said she hopes her daughter is remembered as a “kind, loving” individual.

Shim is scheduled to be sentenced June 25 and faces life in prison without the possibility of parole, authorities said.