James Larry Cosby

James Larry Cosby

The Galveston County Sheriff’s Office has arrested the father of the one of the women found dead last week in Port Bolivar.

James Larry Cosby, 46, was arrested Thursday morning and charged with two counts of tampering with evidence in the deaths of his daughter, Britney Cosby, and her girlfriend Crystal Jackson, the Houston Chronicle reports.

Britney Cosby and Jackson, both 24, were found Friday morning near the trash bin of a convenience store. Police have since released a sketch of the man who was last seen with the women.

Police believe the women were killed somewhere else before being moved to the trash bin. They were in Galveston County last week celebrating Mardi Gras before family members lost contact with them. Autopsy reports this week revealed that Cosby died of blunt force trauma and Jackson was shot to death.

Cosby is in the Galveston County jail with bail set at $500,000. Charges could be upgraded to capital murder as the investigation continues.

Cosby’s arrest came during an interview with sheriff deputies Thursday after he made certain statements and deputies found evidence, Galveston County Sheriff Henry Trochesset told the Chronicle. He said the home “appears to be a secondary crime scene.”

Cosby lived in the Houston home with his daughter and his daughter’s great-grandmother.

Police are still searching for a person of interest in the case and the couple’s silver 2006 Kia Sorrento. Anyone with information about the case should contact the Galveston County Sheriff’s Office tip line at 866-248-8477.