The man suspected of killing Colorado's prisons chief threatened to kill a guard while he was in prison, according to state records.
It's just one episode in a long history of misconduct behind bars for Evan Spencer Ebel, who died after a shootout with Texas authorities last week.
Within nine months of entering prison in 2005, Ebel misbehaved so badly he was placed in solitary confinement. He spent much time there because of continued threats and attacks against prison workers and other inmates.
The new information comes from Ebel's prison record, which was released to The Associated Press on Thursday after an open records request.
Evan Ebel, suspected of Clements' murder, was killed in a shootout with Texas authorities last week.
Colorado agencies are investigating Ebel in connection to the death of corrections chief Tom Clements and the slaying of a pizza deliveryman, whose body was found two days before Clements was killed.
Now, investigators are working to learn if Ebel acted alone.
Investigators are also trying to nail down a motive in Clements' murder.
We will continue to bring you the latest in this case as we learn it.