After talking for so long, Schiller was no longer that sleepy. He knew that even if he went back now, he would probably lie awake until dawn. Since he was already stirring things up anyway, it would not hurt to put in a little more effort.
"Serial killers always think they are clear-headed when they commit crimes. To some extent, that is true. They can handle crime scenes more calmly and rationally than ordinary murderers, leaving almost no trace behind. If that counts as insanity, then there are not many sane people left in this world."
"But human behavior is like this. It follows certain patterns, and those patterns inevitably reflect personality. No one can live as someone else. Their actions are their own, and naturally reflect all of who they are."
"Clues can be erased, and traces can be concealed, but the basis for every clear-headed decision they make is their thoughts, all of which stem from their personality. There must be a trail to follow."
"The way he arranged the corpse may seem to reflect what he wanted to express, but it actually expresses much more than that, because his choices also reflect his personality."
"Many factors influence a choice. Aside from personality, there is also his current state, his thoughts in that moment, and whatever has been worrying him lately."
Bruce looked very serious. He was genuinely assessing whether that was true, because he knew Schiller would not lie about professional matters.
I really would not lie. Schiller saw what Bruce was thinking and added inwardly, *the professional parts are all true. It is like a ship really being made of steel, except every part connecting it has been replaced with marshmallows. If you insist on trying to launch it, who else is going to capsize but