He pleaded guilty Thursday to attempted murder, aggravated assault, attempted sexual assault and a weapons charge.
It was the first time Kornberger publicly admitted an attack. He is serving an 18-year sentence after being convicted last year of attempted rape in Camden County.
His trial is scheduled to begin next week in the murder of Krista DiFrancesco, who was found dead outside her family's condominium in 2003 after a night out with friends.
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Information from: Courier-Post, http://www.courierpostonline.com/