Warren Pennick of Lansdale pleads guilty, but insane

He stabbed his mother to death on Halloween

Author: , (follow: @69news), news@wfmz.com
Published: Jan 14 2014 05:30:51 PM EST   Updated On: Jan 15 2014 08:04:38 AM EST
Warren Pennick pleads guilty to killing mother
NORRISTOWN, Pa. -

Warren Pennick of Lansdale pleaded guilty but mentally ill to third degree murder in Montgomery County Court Tuesday.

Assistant District Attorney Jordan Friter reported 55-year-old Pennick was sentenced to 20-40 years in prison for the Halloween 2012 slaying of his mother.

Investigators said Pennick repeatedly stabbed his 79-year-old mother, Lorraine Pennick, and slashed her throat in their Lansdale home before leaving the 7-inch knife on her chest, changing clothes and walking to the police station to confess.

Pennick's attorney said his client has suffered since childhood from paranoid schizophrenia and delusions.