Brutal Triple Homicide. Brazil

A woman and two men were shot dead in the early afternoon of this Sunday, the 11th, at Rua Vitória Régia, Conjunto Residencial Amazonas II, Highway AM -070, municipality of Iranduba, Metropolitan Region of Manaus. The three dead were identified as B d O M, 30, his girlfriend, I d S M, 20, and R E N P, 56, who was one of the owners of the house invaded by four gunmen. Mototaxi driver L S M, 32, had arrived at the scene with I on the back and was in front of the house talking to her, he was also shot, but survived and is hospitalized in serious condition.
After executing I and shooting the motorcycle taxi driver, the gunmen invaded the house and murdered B in one of the rooms where he and R E had tried to hide when they heard the first shots. The only thing the gunmen didn't do was attack one woman, B's aunt, who witnessed the entire criminal act and even so was spared and reported everything she saw to the military and civil police officers who worked at the triple homicide site in Iranduba. According to the survivor, her nephew B came just over a month ago from the municipality of Oriximiná, in the State of Pará, to live with her, and his nephew's girlfriend, I, had just arrived at the house with L, a motorcycle taxi driver.
The survivor says that the gunmen already got out of the car with guns and fists and shooting, as if they had already planned the attack, without giving any of the victims any chance of defense or escape. The bodies of B, his girlfriend I and R E were removed after the criminal investigation was completed and a team from the Legal Medical Institute (IML) arrived that traveled from Manaus to Iranduba. For now the police only have the testimony of the woman who survived and the motorcycle taxi driver who is hospitalized in serious condition, if he survives he will also be heard at the Interactive Police Station (DIP) of Iranduba. There is still no clue as to the motive for the triple homicide and an attempted murder, but the investigation has already begun and, for the time being, the police officers working on the case have not ruled out the suspicion of settling scores.