EVERETT, Wash. (AP) — A Washington woman has pleaded guilty to killing her roommate.

The Daily Herald reports 55-year-old Tammie Peterson, of Everett, did not admit to the homicide on Tuesday but acknowledged a jury was likely to convict her.

The plea came hours before jurors were scheduled to begin hearing testimony.

Deborah Jeanneret was stabbed more than 40 times in 2017 at her home just south of city limits. Prosecutors say the attack on the 50-year-old was premeditated.

Charging documents say Peterson fled with Jeanneret’s car, cellphone and credit cards, which she used to make purchases.

Peterson faces up to 31 years in prison.

Prosecutors say they plan to seek the higher end of the sentence, while the defense is expected to argue for less time.

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The sentencing hearing is set for March 27.

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Information from: The Daily Herald, http://www.heraldnet.com