Oh no...not capoeira...Brazilian Jiu Jitsu is a a grapple based fighting style which focuses on joint locks, submission holds and leathal breaks. It doesn't look fancy....but god damn is it effective.It's the grapple techniques used in UFC. Very damned effective.
Protojoe, I am no martial artist, but I am very sorry to say that I sorely disagree with your first statement, especially the part where you go "...and well, the only true way to defeat someone...is to kill". That is a VERY dishonorable credo, because it goes against the grain of why traditional martial arts were developed in the first place - for people to defend themselves and protect others.