A woman admitted on Wednesday that she helped two of her children conceal evidence of a gang-related double slaying that occurred at her home, where the bodies were buried in a yard.

Arnetta Welch pleaded guilty to hindering apprehension, Camden County prosecutors said. The 42-year-old is expected to get a two-year probation term when she's sentenced in March.

Welch bought cleaning supplies and helped with the removal of evidence following the February 2010 killings of Michael Hawkins and his girlfriend, Muriah Huff, prosecutors said. The couple were tortured, beaten, shot and buried in the backyard of Welch's Camden home, prosecutors have said.

The bodies of Hawkins, of Mount Holly, and Huff, of Cinnaminson, weren't discovered for three days.

Hawkins, 23, was killed over a gang dispute and a stolen bottle of liquor, authorities say. Huff, 18, had accompanied Hawkins to the home and was killed to prevent her from identifying the attackers, they say.

Welch's children, 19-year-old Shatara Carter and 24-year-old Dennis Welch, were among 10 defendants who have been convicted or pleaded guilty for their roles in the slayings.

Dennis Welch pleaded guilty to aggravated manslaughter in 2013 and was sentenced to 25 years in prison. Carter, who was 14 at the time of the killings, pleaded guilty as an adult to aggravated manslaughter last year and was sentenced to 22 years in prison.