But Jefferson County Sheriff's Office representatives believe the case adds up to murder -- and the person they've arrested is Elmgreen's 53-year-old son and namesake.
According to the JCSO, deputies were called to a residence on the 3800 block of Ridge Road at around noon this past Friday in search of what's described as "an adult male who had an active warrant for his arrest." That person turned out to be (update) Kenneth James Elmgreen, who sheriff's office spokesperson Jacki Kelley says was wanted for failure to appear on a fraud charge.
Upon their arrival at the address in question, the deputies looked through a window into the home and saw drops of blood on the floor. Then the younger Elmgreen appeared, sporting lacerations to his arms and legs.
The man said these wounds were self-inflicted. Does that mean they were indicative of a suicide attempt? According to Kelley, she can't answer the question at this stage of the investigation, but she stresses that there were multiple lacerations requiring several days of hospitalization to address.
When speaking with deputies, Elmgreen also divulged that his father was dead inside the house -- something deputies were able to confirm when they found Bud's body in a nearby bedroom.
At this point, no cause of death has been determined pending results of an autopsy that's slated to take place today. But even without a definitive opinion, Elmgreen was busted on Monday on suspicion of first-degree murder. He's currently being held without bond.
Here's a larger look at Kenneth James Elmgreen's booking photo.
More from our Mile High Murder archive: "Photos: The twelve Aurora theater shooting victims (16-27)."