Tylar Witt, a 15-year-old accused of participating in the stabbing death of her mother last year over a dispute over the teen's boyfriend, pleaded guilty to murder.
Prosecutors say Witt, 14 at the time, was furious that her mom, Joanne Witt, showed Tylar's diary to sheriff's deputies. Her mother had called authorities to claim Tylar's boyfriend, Steven Colver, then 19, committed statutory rape.
Tylar was accused of drugging her mother before she went to sleep in their home before boyfriend Colver, authorities allege, stabbed Joanne Witt, who was 47, several times. Tylar and Steven dyed their hair and fled to the San Francisco area.
Lawyers for each defendant have maintained that the other defendant committed the murder. Now Tylar Witt will be testifying against Colver soon.
Under a plea deal, after Tylar testifies and Colver is either convicted or acquitted, her conviction will be reduced to second-degree murder without special circumstances, and the court will sentence her to no more than 15 years to life.