Maybe refused is inaccurate, he told responding officers he didn't know who shot him.
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My point is that we don't have enough information to form an accurate opinion regarding the officers actions. Jumping to conclusions like that serve no useful purpose towards a solution. Ultimately, in this case they nabbed a suspect. I would rather them wait like they did and put this guy away for life instead of jump the gun before they have a good case and let him out in a few months.