You know in act 4 of Kenshin OVA, Katsura said that a new assassin had "took over" kenshins role as a manslayer, the one who killed lizuka, the spy. Who is he, I belive it's Makoto Shishio, because he was kenshin's successor, he said that during the Kyoto arc.. So that man that appeares in Act 4 is Shishio, the new assassin?