Online court records show 39-year-old Phillip Byrd was charged Thursday in the death of 43-year-old Cheryl Gilberg. Investigators found Gilberg's body in her home. She had been shot in the head.
Dane County Sheriff David Mahoney said previously that he believed the shooting was a result of domestic abuse.
Investigators say Byrd is Gilberg's former boyfriend. He has been held since Feb. 24 in the Rock County jail on charges of failing to pay child support.
Investigators previously described Byrd as a Janesville resident. They said Thursday he was arrested in that city. He is scheduled to appear in court Thursday afternoon.
Cheryl, age 43, is survived by her husband and 2 children along with her mother, a brother, sister, and other family members. She died February 23rd.