Arapahoe County sheriff's deputies say the Sunday night shooting on a Cherry Creek State Park boat ramp is now being investigated as a homicide.
Deputies continue to look for the suspect in the shooting.
The victim was pronounced dead on Monday.
Deputies say the victim was shot around 7:20 Sunday evening near the west boat ramp.
The suspect is not believed to be a threat to the community, according to a tweet from the Sheriff's Office.
Investigators want to talk to anyone who was in the park and may have more information. Anyone with information is asked to call the Sheriff's Office at 303-795-4711.
If you have information but wish to remain anonymous, please contact Crime Stoppers at 720-913-STOP (7867).