CENTENNIAL, Colo. (AP) — An attorney for a woman accused of providing the weapon used to kill Colorado's prisons chief says parolee Evan Ebel forced her to turn over the gun.

Stevie Marie Anne Vigil pleaded not guilty Tuesday to a charge of buying a handgun and giving it to Ebel, the sole suspect in the March shooting death of state corrections chief Tom Clements.

Ebel died days later in a shootout with officers in Texas.

After a brief hearing in Arapahoe County District Court, defense attorney Normando Pacheco declined to say how Ebel forced Vigil to give him the gun.

A relative of Vigil's has said he believes Ebel intimidated her into tuning over the gun.

The 22-year-old's trial is scheduled for Aug. 12