"What causes people to leave clues? Is it because they want to be caught, or because they're confident enough that they won't be? Even in my world and my time, that's still something that's done. Taunting the authorities with their crimes and feeding them information about what they've done." He'd never be so overly confident that he'd give away anything about his crimes, and he rarely even murders anyone. It feels like that's creating unnecessary difficulties to overcome for the criminals.

He starts to recopy the letter, his handwriting extremely precise, almost like a font rather than handwriting.

"I suppose she wanted to make sure we were entertained. And since you have experience with such things, that's.. " the word he's looking for here is 'cute' but he can't think of that in the moment. "She must have spent quite a while doing this for us."

Well, for Malcolm anyway. He has a suspicion why, especially when he sees what she's written to him asking to be taught how to dance.