Denver, CO - Darrent Williams murdered January 1, 2007

On New Year's Day, in 2007, Denver Broncos' young, promising cornerback Darrent Williams was shot after getting in his Hummer limousine after hitting up a night club. The murderer was sentenced to life in prison for first-degree murder and the entire organization mourned over the loss of their talented, opportunistic, young defender.
Fast forward four years—and a ton of controversy—later and, finally, we have a good idea of what the hell happened that night.
According to Sports Illustrated, those bullets, which carried in them the fate of Darrent Williams, were intended for then-Broncos' wide receiver Brandon Marshall.
To recap (shallowly), Little Willie (Williams' murderer) and his gang—who dealt cocaine in the eastern area of Denver—had found their attention to be focused on then-rookie Brandon Marshall, who had made quite the scene outside of the night club, after a bouncer (at first) refused to allow Marshall entrance into the club.
After some hours go by on that New Year's Eve, Marshall found himself trying to alleviate the trouble that the gang members had tried to create.
At the end, the problems that Little Willie and his gang had were with Brandon Marshall, not Darrent Williams. An error saved Marshall's life—and took that of Darrent Williams.
http://bleacherreport.com/articles/661539-bullets-that-killed-broncos-darrent-williams-intended-for-brandon-marshall