When O'Reilly mentioned Putin, the person, being a killer, Trump answered that the U.S. (not a person) isn't so innocent either, which yes true, also clearly deflecting and avoiding saying or acknowledging anything bad about Putin. What immediately came to my mind was O'Reilly could have followed up with "is the President of the U.S. a killer?". I thought missed opportunity, but of course, that could have never aired.