Roger Dean, 51, was shot and killed on Nov. 21, 1985. His murder has remained unsolved. Author: Allison Sylte Updated: 5:28 PM MDT April 9, 2021 DOUGLAS COUNTY, Colo. — DNA evidence taken from a water bottle used by the now-suspect during a cross-country flight helped investigators crack a decades-old cold case, an affidavit says. The victim, Roger Dean, was murdered at his Lone Tree home on Nov. 21, 1985. The perpetrator had entered the house while his face was covered in a ski mask, forced Dean to tie up his wife, demanded the $30,000 in their savings account, got into an altercation with the victim that ended with gunshots and was last seen running down the street of their neighborhood and into a car that witnesses said sped away.