FILE - This undated file photo released by the Colorado Department of Corrections shows paroled inmate Evan Spencer Ebel. Ebel, 28, the former Colorado inmate and white supremacist at the center of a two-state mystery is dead after a high-speed chase and shootout with Texas deputies March 21, 2013. Now investigators are trying to piece together whether he killed the chief of Colorado prisons and a pizza delivery man. AP Photo/Colorado Department of Corrections, File Wise County Sheriff David Walker answers questions during a news conference to discuss the suspect who was killed in Decatur, TexasThursday, after injuring a Montague County Sheriff's Deputy, Friday, March 22, 2013. Evan Spencer Ebel, 28, a former Colorado inmate and white supremacist died after a high-speed chase and shootout with Texas deputies. Now investigators are trying to piece together whether he killed the chief of Colorado prisons, Tom Clements, and a pizza delivery man, where he was headed when Texas police stopped him. Steve Johnson, assistant director of the Colorado Bureau of Investigation, answers questions at a news conference to discuss the suspect who was killed in Decatur, TexasThursday, after injuring a Montague County Sheriff's Deputy, Friday, March 22, 2013. DENVER (AP) - Colorado investigators on Saturday said for the first time that a former prison inmate who was killed in a gunfight with Texas authorities is a suspect in the death of Colorado's state prison system chief. The evidence gathered in Texas after the death of Evan Spencer Ebel provided a "strong, strong lead" in the fatal shooting of Colorado Department of Corrections director Tom Clements, who was killed at his front door, El Paso County sheriff's spokesman Lt. Jeff Kramer said Saturday. A darkly ironic connection emerged among Ebel, Clements and Colorado Gov. John Hickenlooper when the governor confirmed Friday he was a longtime friend of Ebel's father, attorney Jack Ebel. When Hickenlooper interviewed Clements for the top prison job in Colorado, he mentioned the case as an example of why the prison system needed reform, but Hickenlooper said he did not mention Ebel by name. The Colorado Department of Corrections was also investigating Clements' death, but spokeswoman Alison Morgan declined to say whether the 211 gang was a focus of the inquiry. Ebel, who was paroled from a Colorado prison in January, was fatally shot Thursday by authorities in Texas after a pursuit reaching 100 mph. The Tarrant County medical examiner's office in Texas said Ebel died from a gunshot wound in his forehead. Evan Ebel was paroled Jan. 28 as part of a mandatory process after serving his full prison term, Morgan said. The entire state prison system has remained under lockdown. Morgan said the lockdown would not be lifted until after a public memorial service for Clements on Sunday.