User blog comment:Czarmieljerome/What are the 7 great mysteries of One Piece?/@comment-67.230.74.230-20100926001012

my mystery is ,is it only Zoro and nico Robin that are killers in the strawhat crew? if i recall annthe person that luffy fought are still alive, don kreed, arlong, crocodile,enel etc. however zoro only lives those who luffy tells him not to kill and the one's he doesnt feel like killing, while Robin is an assassin.