GREEN BAY, WI (WTAQ) - A Green Bay man is on trial this week for allegedly stabbing his live-in girlfriend to death.

32-year-old Richard Gardipee is charged with first-degree intentional homicide in the June 30th death of 26-year-old Wendy Garcia at the couple’s home.

Police said the two got into a physical fight, after she accused him of abusing pain-killers. They reportedly threw things at each other – and authorities said he later stabbed Garcia with a kitchen knife.

Gardipee’s lawyer said his client acted in self-defense.

The trial was expected to last for most of this week in Brown County Circuit Court.