he had no reason to name macdonald to her if hed done it himself why would he what difference would it make.
1) so she would not know he was so coldblooded that he killed the kids himeslf
2) so that she would be scared to say anything because she had to fear a hitman getting her
3) if she did talk the hitman story woudl be proved false and he could get agood laugh
In contrast what did she get if she made up a hitman story? Nothing. If she were making up a story then she woudl have balemed him alone, you make up a histman when the person you want to blame had a solid alibi and coudl not personally have done it. Jeremy had no such alibi and she well knew that. If she were going to just invent a tale out of thin air she would have said he admitted he killed eveyrone himself.