Police say the suspect was arrested after he turned himself in Monday night on a probation violation. Two other 19-year-old men were arrested earlier Monday in the case.
On Dec. 29, 43-year-old Danielle Zimmerman suffered a brain aneurysm after she pulled into a Taco Bell. While she was unconscious in her car, someone stole her purse, phone and wedding ring. Zimmerman died the next day.
Some of her items were found but her wedding ring is still missing.