Skip down to "Hollow." Read the second paragraph.
Quote (That Wiki Entry)
Hollow is actually Altair (Hiko in the Japanese version),
OMGWTFBBQ.
Altair is one of my favorite characters. .__. (Assassin's Creed)
Another funny thing I found was that in RuroKen, where I GOT my namesake, there actually IS a character named Hiko. Hiko Seijuro. It's Kenshin's master for Hiten Mitsurugi-Ryu, the fabled art form [/rambling]...
But you must imagine how much I laughed at that...
Anyways, kudos to Zero for finding that entry. :'D