Carlos Machado is the brother-in-law of a professional mixed martial artist with how many wins by knockout?
Carlos Machado (fighter): Carlos Machado (born November 9, 1963) is an ex world master's champion in Brazilian jiu-jitsu (BJJ) born in Rio de Janeiro, Brazil. Carlos Machado (fighter):  He is also the brother-in-law of UFC fighter Stephen Thompson. Stephen Thompson (fighter): Stephen Randall Thompson (born February 11, 1983) is an American professional mixed martial artist and former professional full-contact kickboxer who currently fights as a welterweight in the Ultimate Fighting Championship.
i don't know