Sister Killed Her Brother

A man identified as A.d.S.C., 30, was murdered by his own sister, having been stabbed in the chest this Saturday afternoon, 15, inside an apartment in the West Zone of Manaus.
The sister had also been stabbed. She had come out of the apartment covered in blood, and was taken to hospital.
When some residents entered the apartment, they found A.'s body on the couch, with blood smeared all over the floor. According to residents, A. and his sister had constantly engaged in arguments, and had been seen a few hours before drinking on the balcony