TULSA, Oklahoma - First-degree murder charges have been filed against a mother and son Cherokee County deputies say killed a Tulsa man.

Deputies are still looking for Diana and Ty Bohlander - who are homeless. Bohlander's boyfriend James McFarland was found dead in Cherokee County in April.

Diana Bohlander is a 55-year-old white female, 5'3", 130 pounds with blue eyes, a news release states. Her son Ty is 21, 6'2", 235 pounds and also has blue eyes.

Investigators believe they are both homeless and visit shelters and campgrounds in the Tulsa area.

Authorities say they are likely driving a green 1994 Chevrolet Camaro with Oklahoma License Plate CZR-875. It has a "Punisher" decal on the back window, according to the Cherokee County Sheriff's Office. 

If you know where the Bohlanders might be - call police.