A Gloucester woman was found not guilty of second-degree murder Tuesday in the stabbing death of her mother last summer.

Judge Jeffrey W. Shaw made the finding after one and a half days of proceedings in Gloucester Circuit Court. Shaw found Christa Joanne Pohorence, 30, not guilty of murder and not guilty of stabbing in the commission of a felony, both by reason of insanity.

According to prosecutor Wendy Alexander, an assistant commonwealth’s attorney for Virginia Beach, Christa called 911 around 1:44 a.m. on July 9 of last year to report she had stabbed her mother, 72-year-old Marsha Joan Pohorence, in the chest. Christa said her mother spat up blood before collapsing on the bedroom floor.

When the first Gloucester Sheriff’s deputy arrived, he found Marsha Pohorence in a pool of blood on a bedroom floor and then Christa in an attached garage at the opposite end of the house smoking a cigarette and still on the phone with the 911 dispatcher.

Alexander said Christa and her ...