Over the years, we’ve seen our fair share of unsolved murders in Colorado and various phenomena that have baffled both law enforcement and the general public alike. Today, we will take a look at five of these disturbing unsolved mysteries that happened right here in the Centennial State:
1. Henry Plummer & His Treasure
During the Montana gold rush in the mid-1800s, notorious town-sheriff-gone-bad Henry Plummer lead a gang of ruthless robbers and murderers in an attempt to steal miners gold. Once word got out that Plummer was the leader of the so-called "Road Agent Gang," he was hanged--before he could tell anyone the whereabouts of his stolen treasure. It is speculated that his bounty was buried in either Colorado, Kansas or California.
2. Leroy Drieth
In 1968, Leroy Drieth was leaving his girlfriend's home in Mead when his car slammed into a tree, killing him instantly. It was believed that Drieth committed suicide, but an autopsy performed 25 years later showed that the teenager was murdered (as evidenced by the knife wounds on his neck). To this day, it is unknown who killed Leroy Drieth, but it is speculated that his then-girlfriend has the answer...
3. Mark Groezinger
In 1984, Mark Groezinger, a beloved community member with no known enemies, was found with multiple gunshot wounds in his car near Lookout Mountain. No official suspects have ever been named; however, there has been continued speculation that his widow was the cold-blooded killer.
4. Roger Dean
Perhaps one of the most perplexed cases of all is that of Roger Dean, a Littleton man who was forced via gunpoint by a masked gunman to tie up his wife. When Dean fled the house for help, he was shot and killed. What baffles police and bystanders alike are the events leading up to the murder: a $30,000 withdrawal by Dean put into a secret account, evidence planted to throw the cops and strange sightings of Dean just hours before his murder. It is still unknown just who shot Roger Dean, but it is speculated that extortion letters delivered to his widow years after his murder were written by both a man and a woman.
5. Dale Williams
In 1999, Nucla autobody repairman Dale Williams vanished into the night after receiving a mysterious phone call from a traveling motorist in need of a mechanic. He was never seen or heard from again, leaving his wife, Diana, to believe that he had been murdered by a former friend--whose ex-wife they had just recently and secretly moved to Colorado.