"He said he was hired by the victim's family. In fact, it turned out he'd gotten himself hired by all three families. How he managed that I'm still not sure."

She explained then how in retrospect he had impersonated L, though one would only be aware of this if they'd seen the real one - the posture, the sitting position, the preoccupation with sweets. Then the "uncovering" of the clues he'd planted, the random attack, etc. All up to the day they'd been waiting in apartments nine floors apart. Then how he'd let slip the knowledge she knew capoeira, and how that had fit in to send her running down nine flights of stairs to 404 -

"Then I put him out and arrested him."