"Maybe you'd better take a look at this, first," Masato muttered as he looked around conspiratorially.  When he was satisfied that no one else was looking, he took the shoe from his pocket and showed it to Matt.  "Found this on the roof, next to the door.  Looks pretty mangled, but I think we both know who this belongs to."  He growled a bit as he spoke quietly.  "This fucker is getting pretty god damn bold.  What do we do now?"