Yazzie is the second individual convicted in the case.
La Plata County District Attorney Craig Westberg has not yet indicated whether he will retry Yazzie on the two other counts of sexual assault or the murder charge. William Herringer, one of Yazzie's two attorneys, told The Dartmouth that he believes Yazzie will not face additional prosecution.
"His conviction carries a big sentence," he said. "It's doubtful they would want to put the time, effort and money into retrying him."
If tried and convicted of murder, Yazzie could be sentenced to life in prison or death.
Westberg did not return calls from The Dartmouth by press time.
To convict Yazzie on any count of sexual assault or murder, all 12 jurors had to agree on a verdict.
"The jurors were pretty adamant that they were hung," Herringer said. "Some jurors said that under no circumstances would they change their vote."
In addition to the sexual assault conviction, Yazzie was found guilty of false reporting, a misdemeanor in Colorado.
Yazzie's sentencing hearing is scheduled for Aug. 22.
A Colorado court had previously convicted Derrick Begaye in Redhorse's sexual assault. Sentenced in May to the maximum 48 years to life in prison, Begaye was acquitted of the felony murder charge.
A third defendant, Harold Nakai, will face trial later this summer.
Redhorse was found dead on the morning of June 7, 2007, in a motel room at Spanish Trails Inn & Suites in Durango, Colo. During his opening statements, Westberg told the jurors that the three men came to Redhorse's home on June 6, where they found her highly intoxicated, according to a report by The Durango Herald. The men took her to the Spanish Trails Inn, where they continued to serve her alcohol. Nakai and Begaye raped Redhorse in the room and then left Yazzie alone with her for two hours, Westberg alleged. It was during this time that Westberg said Yazzie used a hammer to cause fatal injuries to Redhorse, The Durango Herald reported.
No one witnessed the assault, and DNA evidence was inconclusive, Herringer said. The Dartmouth reported in May that the hammer, the alleged murder weapon, was not collected or tested for DNA by the Colorado Bureau of Investigation.
At Dartmouth, Redhorse majored in sociology and minored in economics. A member of Native Americans at Dartmouth and Students for Choice, she also served as a tour guide for the admissions office and participated in the Big Brother Big Sister program, according to alumni records.
