A Michigan grandmother was stabbed to death by her teenage grandson, who was later killed by a train!

Credit: KXXV

Mary Barnes was allegedly stabbed to death by her 15-year-old grandson, Steven Wilkerson, whose body was found on railroad tracks in Holly on Tuesday! His grandmother's body was found inside a home in Springfield Township, according to KXXV. Authorities believe that a disagreement between the two led to the stabbing. The sheriff's office said they received a call from Wilkerson's father, who said his son had left a note threatening to kill his grandmother. The Oakland County Sheriff's Office, the Holly Police Department and Railroad Police are investigating.

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