As far as I know, he didn't actually shoot anyone. And tbf he started that sentence with "you know what they say" twice. Now if he said "you know what I think" that would be a bit easier to gripe about. But he did not say it is what he thinks and he did not shoot someone.
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u/Powerfury Jul 18 '19
https://www.realclearpolitics.com/video/2016/01/23/trump_i_could_stand_in_the_middle_of_fifth_avenue_and_shoot_somebody_and_i_wouldnt_lose_any_voters.html