A Long Beach man was convicted today of gunning down the mother of his three young children in her Bellflower apartment just over two years ago.

Jurors deliberated less than an hour before finding Antowan Ladell Parker, 29, guilty of one count each of first-degree murder, assault with a semi-automatic firearm and being a felon in possession of a firearm, according to Deputy District Attorney Steven Schreiner.

Parker barged into the woman’s apartment in the 16200 block of Cornuta Avenue on Jan. 16, 2017, with a gun, “told everyone to back off” and shot 31-year-old Kenia Buckner six times, according to the prosecutor.

The couple’s 9-year-old daughter heard screaming, went upstairs, looked through a window and witnessed the shooting, Schreiner said.

Parker—convicted in 2010 of a burglary at a Long Beach apartment where Buckner lived seven years to the day before the killing—was at large until his arrest about three months later, the prosecutor said.

Authorities believe the killing was motivated by jealousy after Buckner, with whom Parker had an off-and-on relationship, formed a relationship with another man, according to Schreiner.

Parker is facing almost 100 years to life in state prison, with sentencing set May 2 in a Norwalk courtroom.