"Killing the messenger" apparently means to "attack the bringer of bad news". That doesn't seem to be a good fit for the situation at all. I suggest you read the definition again. I suppose what you meant to say is an "ad hominem attack".

Well, I am certainly sorry when it came off as an insult to you. But it's quite the stretch to assume I wanted to challenge your intelligence by simply trying to understand what could be the underlying cause for you to write something that seemed simply untrue to me.