The state's highest court declined to review Kimberly Lane's murder case last week, possibly paving the way for the 18-year-old California woman's return to Kingman for a second trial.
The Arizona Supreme Court refused to review on a ruling by the state Court of Appeals that overturned Lane's murder conviction last December, state Supreme Court spokesman John MacDonald said.
Lane, who was 14 at the time of the 1996 murders, was sentenced to 32 years in prison for her role in the slaying of a Golden Valley trio.
In overturning her conviction, the appeals court ruled that she was incapable of understanding her rights during questioning and that statements Lane made in an interview to a sheriff's deputy should not have been allowed as evidence at her trial.
Lane, of Lancaster Calif., along with Bobby Poyson, 24, and Frank Anderson, 52, were convicted for the murders of a Golden Valley woman, Leta Kagen, 37, Kagen's 15-year-old son, Robert Delahunt, and Roland Wear, 50, Kagen's boyfriend.
Deputy County Attorney Derek Carlisle, who was the prosecutor in Lane's first trial, could not be reached for comment Monday.
In documents from Poyson's trial, testimony showed that Lane allegedly lured Delahunt into a trailer on Kagen's property where Poyson and Anderson killed him.
Poyson and Anderson then allegedly killed Kagen and Wear and the threesome fled to Illinois in Wear's pickup, records show.
The Supreme Court also overturned Anderson's conviction in June and his second trial is expected to begin in Mohave County Superior Court in February.
Poyson was sentenced to death in November, 1999.
The Supreme Court upheld his conviction and death sentence in July.