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The prosecutors will file paperwork asking Colorado Gov. John Hickenlooper to extradite Ewing from Nevada.

The state of Colorado is urging all states to pass laws to obtain DNA from incarcerated inmates to help solve cold cases, authorities said.

\"Every state has unsolved cases,\" Brauchler said. \"... Do this for the victims that have gaping holes of crimes that have not been solved.\"

Ewing is already serving a 40-year prison term in Nevada for two counts of attempted murder and two counts of assault with a daily weapon, according to The Post.

Several months after the Colorado murders, Ewing entered a home in Kingman, Arizona, through an open door and attacked a man nearly to death with a 20-pound boulder, The Post reported.

\"PHOTO:
Nevada Department of Corrections
PHOTO: Authorities have used DNA to link prisoner Alexander Christopher Ewing, 57, to four cold case murders in Colorado.
>

Ewing was later arrested by Kingman police on charges of attempted murder, and on Aug. 9, 1984, while being transferred for a trial hearing, he escaped the jail van when it stopped at a gas station for a restroom break, according to The Post.

Ewing then ran into a K-Mart and changed clothes and later that night entered a home in Henderson, Nevada, armed with an ax handle and attacked the couple living there, The Post reported.

Ewing was eventually captured two days later after a massive helicopter and foot search, according to The Post. He was convicted by the 8th District Court in Las Vegas in 1985 and is being housed at the Northern Nevada Correctional Center in Carson City, prison records show.

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