The LB murders refer to the brutal murders of two Brazilian individuals known only by the nicknames "Lorran" and "Bielzin". They were both killed by the dangerous and ruthless couple Lorena Vieira and Vitor Portencio, both members of the criminal group ISG. The murders were gruesome and violent, as Lorran and Bielzin were beheaded, shot at close range multiple times, and then their bodies were blown up with explosives. Lorena and Vitor are ruthless and feared, and they made it clear that anyone who disrespected their group would pay with their life.