OKLAHOMA CITY -- A woman charged with first-degree murder in the drug overdose death of her teenage daughter has pleaded guilty to an amended charge.
Doris Rigsby entered the plea Friday to a charge of causing, aiding or encouraging a minor to commit a drug-related crime.
Associate District Judge Stephen Kistler sentenced her to 20 years in prison but suspended 10 years.
Rigsby's 15-year-old daughter, Linda Tucker, died June 25 after being injected with methamphetamine during a family reunion in Stillwater.
Another person charged with murder in Tucker's death was Jeffery Alan Phillips, who pleaded guilty to unlawful delivery of a controlled and dangerous drug. He was given a 15-year prison term.
Rigsby's attorney, Peter Astor, didn't immediately return a call seeking comment Friday. Phillips' attorney, Corbin Brewster, couldn't be reached for comment.