See the first letter here.
Dear Mr Empwood,
I gained both my degree and my master’s in Psychology at the University of Exeter, under the tutelage of the very skilled and able professors who work there. My interest in Psychology, especially surrounding violent crime, developed during my teenage years. Unless I am mistaken, you met my father while he was incarcerated. It was after his death that my desire to understand the motives behind his crimes began.
You may already know that the Stanford Prison experiment was the very study which highlighted the need for certain ethical guidelines to be compulsory, and its aftermath produced the foundation for the rules we follow today. Let me reiterate, you may withdraw from the study at any time you wish. You do not need to give a reason and your decision will not affect your treatment. Your concerns are taken seriously.
I cannot say I have a “favourite” victim of yours. However, your behaviour after murdering Hayleigh Jones was unusual and inconsistent with your other crimes. Your other victims were simply left in their beds. After strangling Hayleigh, you dressed her in her wedding gown and left her outside the church she was due to be married in three days later.
Was this simply to gain attention? If so, you certainly succeeded. It was the murder which sparked the media frenzy which did not end until well after your capture and imprisonment.
P.S. I’ve always preferred moths to butterflies. They’re much less ostentatious.