On claim that defendant, a Minneapolis police officer, violated plaintiff's civil right by shooting him while he was working as an undercover police officer, the district court did not err in denying defendant's motion for summary judgment based on qualified immunity; plaintiff presented sufficient evidence in support of his claim to allow a reasonable jury to find that the use of force was not objectively reasonable; further, there was a genuine issue of material fact as to whether a reasonable officer faced with the circumstances would have believed his conduct - firing a semi-automatic weapon at a kneeling, unarmed man - was legal.