A man with no known enemies is found riddled with bullets.
On Lookout Mountain, 12 miles west of Denver, Colorado, there is a shrine dedicated to Mother Cabrini, the first American saint. Her shrine overlooks the city of Denver; it is a peaceful, tranquil place. But on the morning of April 7th, 1984, a man leaving the shrine’s grounds noticed a blue Buick parked on the roadside. The driver’s window was shattered and the man decided to take a closer look. Inside the vehicle, he noticed a body, riddled with bullet wounds. The dead man was Mark Groezinger, a 29-year-old concrete cutter from the nearby town of Golden. According to his wife Judy, Mark had no known enemies:
The Jefferson County Sheriff’s Department found that Mark had been shot repeatedly, in a manner that seemed obsessive. No trace of the murder weapon was found at the crime scene. However, investigators did find a paper bag filled with .38 caliber bullets on the right front floorboard of the car. Numerous shell casings were found both inside and outside the vehicle, suggesting the gun was reloaded at least twice during the shooting.
According to Lieutenant John Dunow of the Jefferson County Sheriff’s Department, other intriguing clues were also found at the crime scene:
According to Lieutenant Dunow, Mark’s murder appeared to be a crime of passion:
Sheriff’s Department investigators brought Mark’s wife, Judy, in for questioning. Judy said that around 6:30 PM on the night Mark was killed, they had eaten dinner at a local restaurant with a friend. According to Judy, Mark wanted to go out, but she wasn’t feeling well. Judy said Mark took her home around 8:00 PM. Her friend decided to keep her company at the house.
As Lieutenant Dunow investigated the case, he found several discrepancies in Judy Groezinger’s story:
Despite an extensive search of the entire area around the Mother Cabrini Shrine, investigators were not been able to locate a murder weapon to match the .38’s shells. When Lieutenant Dunow ran a check on all recent .38 purchases in the Denver area, he recognized one name—Judy Groezinger:
But according to Judy, it was her husband who told her to purchase the gun:
Lieutenant Dennis Potter was another lead investigator on the case. He immediately questioned the managers of the pawn shop:
Then, according to Lieutenant Potter, another major discrepancy in Judy’s story surfaced:
In Mark’s car, investigators found evidence that someone had stopped at a liquor store on the night Mark died. They found a six-pack of beer, but the receipt showed it was purchased from a different store than the one Judy named.
The murder of Mark Groezinger seemed to raise nothing but unanswered questions. Why had he been at the shrine, such an isolated, out-of-the-way location? And who had a motive for killing him? All investigators knew was that he was shot from the passenger side of his car and that his murder had all the earmarks of a crime of passion.
Without any clear leads, investigators brought in the only person who could verify Judy’s alibi—the friend who had stayed with her after Mark dropped her off at home. She said she had watched TV with Judy until around midnight, then slept over on the couch. But according to Lieutenant Potter, rumors about the two women began to surface, casting suspicion on the friend’s credibility as a witness:
The day after Mark’s murder, Judy’s friend moved in with her. After living together for a few years they bought a house. However, according to Lieutenant Potter, investigators still don’t have enough concrete evidence to charge Judy Groezinger with murder:
The murder of Mark Groezinger is a case filled with loose ends which may never be completely tied together. Throughout all of it, Judy Groezinger has maintained her innocence. She even took a lie detector test, which supported her story. But the discrepancies remain, and Judy Groezinger is still considered a person of interest. All that is known for certain is that Mark’s killer is a free man… or woman.