Florisvaldo de Oliveira (November 18, 1958 – September 26, 2012), commonly known as "Cabo Bruno", was a Brazilian vigilante, serial killer and former officer of the Military Police of São Paulo State accused of more than 50 murders on the outskirts of São Paulo during the 1980s. Considered "one of the most controversial characters in the police chronicle", he initially admitted these deaths, but later denied them in his testimony.