Clint Burtts is a murder victim of a most unusual sort. The attack that eventually took the 52-year-old's life took place in September 2013, but he didn't pass away until this past spring. Now, the Denver Police Department is asking for help in finally cracking the case, with investigators seeking assistance from one specific (and probably difficult-to-find witness). Here are the details.

See also: Daniel Stetzel, Escapee, Reportedly Killed Mom Before Authorities Started Looking for Him

The incident in question took place around 5 p.m. on September 18, 2013, just shy of a year ago, in the vicinity of Speer Boulevard and Stout Street. The Denver Police Department provided the following birds-eye pic from the location....

...which is also spotlighted in this interactive graphic. If you have problems seeing the image, click "View Larger Map."

Burtts is said to have been assaulted near the intersection and was subsequently hospitalized. He ultimately died as a result of his injuries on April 10.

DPD investigators have reason to believe a transient named Michael may have seen what happened; he goes by the name "Wolf," has a dog known as Pork Chop and is believed to panhandle in the area of Interstate 25 and Speer. But given the time of day and the busyness of the area, others may have observed something as well.

With that in mind, the department is asking anyone with information about the crime to contact Metro Denver Crime Stoppers at 720-913-7867 (STOP). A reward of up to $2,000 is being offered.

Send your story tips to the author, Michael Roberts.

• Crime