Carter pled guilty to the charges and was convicted in July after taking a plea deal.
A sentencing date has not been set.
Carter faces the charges in relation to the death of Keona Foote and Miyon Miller in September 2020.
According to the criminal complaint, Carter allegedly used a cellular phone power adapter to wrap around her neck.
During the investigation, officers learned that she had been in a recent six-month relationship with Renard Carter. The three had been residing together for the past thirty days.
Investigators obtained information from a witness that Carter sent a message two days prior that he was going to kill the mothers of each of his children.
Officers spoke with another witness, that said three people heard Carter speaking to the victim in August 2020, and was threatening to kill her, her 2-year-old and the unborn baby.