Vitor Belfort is fighting outside of the cage for a cause very dear to him.
In 2004, Belfort's sister Priscila Belfort was kidnapped in 2004 and never seen again. Brazil police suspect she was murdered, arresting suspects as recently as 2013, per Bleacher Report. Elaine Paiva confessed in 2007 to murdering Priscila; however, with no body found the issue is contentious even amongst Belfort's family.
"We don't know. My mom thinks she is in sex trafficking still," Belfort told Fightful. "I think she was brutally murdered by these people that live in a slum in Brazil. They're killers. They are evil people. They have evil people everywhere but it's insane. They burn people alive because they like it. They torture. They put them on tires and burn them so no one can find the teeth."
The fight to free victims of human and sex trafficking is of the utmost importance to Belfort.
"We need to wake up. Human trafficking is serious... They're selling kids, they're putting women in sex trafficking," Belfort expressed. "Slavery still exists. Sex trafficking, human trafficking. My sister has been missing since 2004. Human trafficking is a huge thing. No one is doing anything about it."
"Human trafficking is an industry of $200 billion. People are in slavery, sex trafficking. Kids are being sold for thousands, tens-of-thousands of dollars. That's insane. We gotta stop it. Someone is doing something really, really bad," he concluded. "That's my fight, that's my cause."