No, this wasn't intended to slyly indicate that "Trump makes murder respectable". Were I to make that bold accusation I'd want to debate that on another forum than HN and base it on things Trump has actually stated.
Regardless of politics, Trump has a very idiosyncratic approach to speaking. His mastery of this approach reminds me strongly of the Orwell essay linked above.
I've no desire to debate Trumps policies on HN, but find his approach to speaking quite interesting.