Investigators found bomb-making materials and pants that appeared to have blood on them in the car of a man suspected of killing Colorado's prisons chief, according to documents made public Tuesday.
Authorities also found maps, handwritten directions and documents from the Department of Corrections in Evan Spencer Ebel's black Cadillac. Also found were a Domino's Pizza worker's shirt and visor, and a pizza carrier bag along with zip ties and duct tape.
Ebel was killed in a shootout in Wise County, Texas, last week after a high-speed chase.
Authorities in Decatur sent the items they found in the car to Colorado agencies investigating the death of corrections chief Tom Clements and the slaying of a pizza deliveryman whose body was found two days before Clements was killed.
Also in the car were black powder, a surveillance system, a digital voice recorder and handwritten documents and letters, according to the documents from police detailing what they found.
Colorado investigators refused to discuss the evidence.
"We don't want to speak about their relevancy or what they might mean to our investigation," said Sgt. Joe Roybal, spokesman for the El Paso County Sheriff's Office.
A week after Clements died after opening his front door, investigators were still trying to determine Ebel's role in the slayings and whether others were involved.