The kidnapper and eventual murderer of Priscila Belfort, sister of popular mixed martial artist Vitor Belfort, confessed to authorities on Monday, according to Brazilian media.

Elaine Paiva, 27, admitted to kidnapping and murdering Belfort after receiving money when the gang she worked under was dissatisfied with ransom negotiations.

Paiva was arrested along with three others alleged to be involved in the kidnapping that took place in January 2004.

Police are searching for the body on a small farm near Rio, where Belfort is said to have been buried.