The 28-year-old convict suspected of shooting to death Colorado's prison chief left prison wearing an ankle bracelet tracking device when he was paroled, according to a Colorado law enforcement official who has examined Evan Ebel's prison case file.

While that new detail emerged Thursday, a 22-year-old woman police say is connected to the case appeared in court.

Stevie Marie Vigil of Commerce City made a "straw purchase" from a weapons dealer and gave the gun to Evan Ebel, a convicted felon who could not purchase his own firearm, according to the Colorado Bureau of Investigation.

Colorado prisons chief Tom Clements was shot to death at his home outside Colorado Springs on March 19. Ebel, 28, was killed two days later in northern Texas in a gun battle with authorities that left a sheriff's deputy wounded.