He killed his ex-girlfriend with a knife and then attempted suicide at Blue Lake Sector in Palmas, capital of Tocantins.
According to information from the military police, the youth identified as Adriano Alves de Sá 20 years argued with his ex-girlfriend Valdiene Silva 27 years he could not accept the end of the relationship. It was during the discussion that he took a knife and stabber her multiple times to the neck, chest and abdomen because of the severity of the injuries she died on the spot. Then Adriano entered his apartment saying he would commit suicide, then he stabbed himself in the neck with the same knife .. He was taken to hospital and survived.