MEADVILLE, Pa. (AP) - A second northwestern Pennsylvania woman has pleaded guilty and been sentenced to life in prison without the possibility of parole in the love triangle killing of an Ohio woman found buried in a shallow grave last year.

Twenty-one-year-old Ashley Barber pleaded guilty Thursday in Crawford County Court to first-degree murder in the death of Brandy Stevens, 19, of Beaver Township, Ohio.

Prosecutors say Barber and 20-year-old Jade Olmstead, who pleaded guilty last month, lured Stevens to their home near Cochranton in May 2012 where they beat and waterboarded Stevens, before rolling her into a shallow grave, where she suffocated.

Stevens' mother, Carrie Rosine, told sentencing Judge Mark Stevens - who isn't related to the victim - that her daughter "was a loving, caring compassionate young woman" who did not deserve to die.

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