No error in exclusion of expert witness at summary judgment for the purposes of translating blurred video into spatial analysis, as the finder of fact would ultimately base their judgment on personal observation of the video. No error in the exclusion of expert witness on possible medical causes of decedent's behavior, as the officer's judgment was the relevant conduct.
Video evidence does not sufficiently discredit officer's account.
Suspect's biting of the officer's finger during the struggle made shooting the suspect several times in the chest a reasonable act, as the officer feared that he wouldn't be able to defend himself if the finger were to be lost. Earlier tasing of the suspect also held to be reasonable.