User blog comment:Flamesword300/My theories on why peter was a beast as an alph/@comment-143.207.66.118-20140828025545

i dont think killing any werewolf makes an alpha stronger, it has to be a member of their pack. and deucalion is older than peter. in the flashback to how derek got his blue eyes it showed a late teen/early twenties peter and an already grown deucalion.