Just a quick list of things that cops do when they're not shooting unarmed people who threaten them:
1. From New York, about a week ago: "A Southold Town police officer reportedly used pepper spray and a Taser to subdue a Greenport man who was allegedly drunk and attacked the officer Monday."
2. From Minnesota, in October: "In response to his resisting officers, Johnson 'was sprayed with department-issue chemical irritants and forced outside.'" That's Tom Johnson, backup defensive tackle for the Minnesota Vikings, a notably large person.
3. From Massachusetts, in July: "Pepper spray had no effect on the suspect [who was on PCP and attacking officers] and it ultimately took numerous police officers and four sets of strung together handcuffs and leg shackles to get the man under control."
4. Finally, most poignantly, from Missouri, in September: "As the officer began to cuff the man, Turnbough reportedly turned and attacked him, tackling him to the ground and placing him in a choke hold." Another officer maced Jeffrey Turnbough, who had told police that he had a knife on him.
This list is endless. Not one of these men died attacking or resisting a cop, even though shooting them would have been faster and less painful for the cops being hit and strangled. In fact, most cops, when confronted with an unarmed, violent person, use mace and/or a Taser (since most police officers don't care if they're uncomfortable) and/or wait for backup.
Darren Wilson was scared. Scared people make stupid decisions that endanger others. Scared cops, apparently, get away with their stupid decisions.
(Note: Remember that Wilson said he didn't want to mace Michael Brown when Brown was supposedly attacking him up close. But when they were out in the open, with distance between them? Why not? Why shoot instead of mace?)