A 22-year-old woman is accused of buying the weapon used to kill Colorado prison chief Tom Clements last week and funneling the weapon to the alleged gunman.

The Colorado Bureau of Investigation said Stevie Marie Vigil of Commerce City, Colorado, was arrested Wednesday night. Authorities say she made a "straw purchase" from a weapons dealer and transferred the weapon to Evan Ebel, a convicted felon who could not purchase his own firearm.