A because there should always be a comma between quotations and before or after the person who is talking.
Ex. "You should do that,"Mary warned.
Mary warned,"You shouldn't do that."
The correct answer to your question is: Charles killed Mrs. Huffington, if I'm not mistaken.
Hope this is the answer you were looking for and that it helps!! :)
The third one is correct.
Answer:
it is correct the way it is
