“there’s no excuse for saying what he said,”
Yes there is! He was mad, lost his temper, and used bad language. (First amendment protected language).
It’s a WORD, nothing more. I can think of many, more vulgar words, he could have called her. When people get angry and scared bad language “happens”. Nobody is proud of it later, but it is no big deal and for now, doesn’t warrant an arrest.
“First amendment protected language”
Good luck with that.