Woman convicted in child's death 25 years ago arrested for attac - CBS News 8 - San Diego, CA News Station - KFMB Channel 8

Woman convicted in child's death 25 years ago arrested for attack on mother

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SAN DIEGO (CNS) - An Otay Mesa woman who killed her baby daughter 25 years ago by throwing her into San Diego Bay was behind bars Tuesday for allegedly attacking her 86-year-old mother with a knife in the apartment they share, police reported.

Lorenza Delgadillo Penguelly, 51, was arrested shortly after 6:30 a.m. Monday at her rental residence in the 1100 block of 25th Street, just south of Coronado Avenue, according to police.

Medics took Penguelly's mother to a hospital for treatment of non-life-threatening puncture and slash wounds to her head, face, arms and hands.

A motive for the alleged assault was not immediately clear.

In September 1986, Penguelly hurled her 5-month-old daughter into San Diego Harbor, causing her to drown. Her attorneys argued that acute mental illness prompted the infanticide, and Penguelly eventually pleaded guilty to involuntary manslaughter. She was sentenced to six years in prison and was treated at a state psychiatric hospital before being released.

Following her arrest for the alleged assault on her mother, Penguelly was booked into county jail on suspicion of attempted murder, assault with a deadly weapon and elder abuse. She was being held without bail pending arraignment, scheduled for Wednesday afternoon.

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