Will gives Malcolm a much-more-often-seen eyeroll as Malcolm says 'the murder I did.' They've already gone over that. It is relevant in this context, but Will wishes he wouldn't put it that way.

The actual answer has Will brightening again. "That's how I do it, too. You step into their shoes and then you know what they did in what order. You see their design by putting it into action." Will tilts his head a bit. "-well...mental action. Do you- uh...do you practically black out when you imagine the murder, or is that one just me?" he adds, looking slightly sheepish.