Police say a Hamilton woman whose body was found in the trunk of her car on Wednesday was stabbed to death.
Holly Hamilton was reported missing by her family on Monday.
Police said her disappearance was out of character and there was reason to be concerned for her safety.
The 29-year-old woman's ex-boyfriend was charged with second-degree murder on Thursday.
Investigators say 30-year-old Justin Dumphrey was arrested in a Hamilton courthouse on Wednesday while he was there for another matter.
They allege there was a history of domestic violence in the relationship.