On September 9th, 2010 43 year 43-year-old Yvonne Hiller got into an argument with three of her coworkers at a Kraft Nabisco plant. She accused them of poisoning her for years.
Hiller’s attack on her coworkers got her in trouble, and she was suspended and escorted out of the building by security.
She went to her car, got a weapon, and returned to the building. She forced security to open the gate.
As she headed to the 3rd floor, the security team ran for their lives. Even though they had radios, they failed to alert anyone inside the plant that an armed woman was in the building.
Hiller located the three people she had issues with and took shots at them. Two of them died, while one survived.
After being arrested, she told authorities she suffered years of chemical abuse.
She could have faced the death penalty, but she pleaded guilty and was sentenced to life without the possibility of parole on September 24th, 2012.
DOB:
January 12th, 1967Conviction(s):
- First-degree murder (2 counts)
- Attempted murder
Date of crime:
September 9th, 2010Location(s):
Philadelphia, PADate of arrest:
Same DayDetails:
Killed two coworkers and injured another because she thought they were poisoning her.Confirmed Victim(s):
- LaTonya Sharon Brown (36)
- Tanya Renee Wilson (47)
- Bryant Dalton (Survived)
Method:
ShootingSentence:
Life without parole plus 10-20 yearsCurrent whereabouts:
State Correctional Institution Muncy in Muncy, PALast Updated on 03/25/2026
