BUFFALO, N.Y. (AP) A grand jury has indicted a western New York mother on a charge of killing her 8-year-old son.

Jessica Murphy's attorney entered a not guilty plea to murder charges on her behalf in state Supreme Court in Buffalo Wednesday. She's being held without bail.

The 29-year-old was arrested last month after authorities say she strangled and stabbed Jacob Noe inside their Buffalo apartment.

Murphy's lawyer is requesting a mental health evaluation before trial.

She faces up to 25 years to life if convicted of the second-degree murder charge.