The ex-girlfriend of accused killer Richard Ward Clarke told jurors Tuesday that Clarke threatened to kill her and another woman he dated, while a former cellmate recounted Clarke’s bragging about killing his roommate.

In prerecorded video testimony shown during the third day of Clarke’s murder trial in Deschutes County Circuit Court, Jessica Blair — who claims to have dated Clarke until three weeks before the night of the attack — said he had threatened to kill her, her child and another ex-girlfriend, Galyn Sisson.

Blair said she had an intimate relationship with Clarke and was even talking about marriage with him until he began selling drugs. Blair also said she was uncomfortable and jealous about his previous relationship with Sisson.

Clarke is accused of beating his roommate, Matt Fitzhenry, to death with a pink baseball bat in October 2010.

Clarke was enraged at the possibility of Sisson dating Fitzhenry, Blair said, and his rage was heightened whenever Sisson and Fitzhenry hung around the house. Clarke talked about whether killing Sisson was worth going to prison for and at one point, Blair testified, he sat on the porch for a few hours with a baseball bat talking about how much he wanted to kill Sisson.

“He just didn’t seem like himself anymore,” Blair told jurors.

She said she noticed Clarke appeared more anxious and quiet around the time the relationship ended. She also noted that Clarke always carried a pair of gloves, saying if he ever wanted to commit a crime, there would be no trail of fingerprints for police to follow.

Cellmate testimony

The inmate — whom prosecutors asked not be identified — testified from the stand that while they shared a cell at the Deschutes County jail, Clarke began asking how much jail time he could face if convicted for murder. The cellmate advised him to be quiet about the crime.

The cellmate — now serving a sentence in Snake River Correctional Institution for coercion — later began prying for information in hopes that acting as a jailhouse informant would help him in a future plea bargain.

“Did you really do that, dude?” the cellmate said he asked Clarke. “I asked him if he really killed that dude. (Clarke said) something like, ‘Yeah, we got into a fight over some girl.’ He said he was pretty mad.”

The cellmate said Clarke admitted to being surprised at news that Fitzhenrywas still alive when taken to the hospital, since he had struck him with the bat more than 10 times.

The cellmate was not offered a deal, but agreed to testify anyway. He told jurors telling the truth and becoming a “snitch” has put him in an awkward and difficult situation.

“I’ve been having a moral dilemma about this whole thing. My whole life I was taught not to tattletale,” he said. “It’s a set of orders that I usually adhere to, but I just figured I’m trying to do the right thing in my life.”

As he walked past Clarke after testifying, the inmate whispered, “Sorry, bro.”

Other witnesses

Other witnesses called to the stand included a crime scene analyst who led jurors through a gruesome set of photos.

In prerecorded video testimony, a third roommate, Chris Hodgkins, testified to his whereabouts that day — which included a trip to Safeway with Fitzhenry. Video surveillance shows the two at the grocery store a few hours before a neighbor called 911 to report the crime.

Bend police Detective Jason Maniscalco interviewed Hodgkins and Clarke the night of the crime. In a video clip shown in court Tuesday, Hodgkins keels over in his chair and exclaims, “What? What?” when he hears Fitzhenry is dead. Maniscalco said Hodgkins seemed genuinely surprised, whereas Clarke was emotionless.

The trial continues today at 9 a.m.