(CNN) — A public memorial service will be held today (Monday) for Colorado's prison chief, Tom Clements.
He was laid to rest Sunday in a private funeral. Clements was shot to death last week as he answered the door at his home.
A former prison inmate, killed in a shootout with Texas authorities last Thursday, is a suspect in Clements' death. 28-year-old Evan Spencer Ebel was a member of a white supremacist prison gang in Colorado.
Investigators are looking into the possibility he might have conspired with other inmates to kill Clements. Ebel is also a suspect in the death of a pizza delivery driver.