Mother of three-year-old boy who died after being beaten by his father is also arrested The Civil Police are investigating whether the four brothers of Oliver Golden Grayson, a 3-year-old boy who died after being beaten by his own father in Viamão, in the Metropolitan Region of Porto Alegre, witnessed attacks that would be carried out inside the house. According to Luana Medeiros, the delegate responsible for the investigation, there is evidence that, while one of the children was being beaten, the others witnessed the scene and were also attacked if they showed sadness or disagreement. ? Access the g1 RS channel on WhatsApp According to the delegate, on the day Oliver was allegedly beaten by his father, Dandre Jermaine Grayson, his older brother watched the scene. The investigation shows that physical injuries against children had been carried out for at least eight years. The eldest son, now 9 years old, would have been attacked since he was at least 1 year old. According to her, children were taught by their parents to lie and say that they had fallen, broken a bone or injured themselves while playing or running. The children have not yet undergone psychic examination, according to the delegate. She explained that this procedure, carried out with a psychologist, has already been scheduled. The delegate stated that, while one child was being beaten, the others watched. "And if they looked sad or disagreed with what was happening, they would also be beaten," he says. "They were always taught to lie, coerced by their parents to lie, not to tell the truth in the hospital." The investigation also investigates the involvement of the mother, Mayanna Angelina Rodgers, in the case. She has North American parents and was born in Japan. Therefore, she has dual citizenship. The delegate stated that, in the beginning, only the father was treated as a suspect in the attempted murder that occurred on Sunday (5). The police point out that there was an omission and that Mayanna, as the children's mother, was the guarantor and could not have remained silent in the face of the torture. The couple's other four children were sent to institutional care after the case and, during the care, professionals noticed "marks of aggression" on the children. READ ALSO: Evangelical pastor received family MP calls on Interpol to find out history Missionary was suspected of mistreatment in three states Mother is also arrested; police investigate omission Boy's organs are donated Boy beaten for not saying 'good morning' to his father dies 'The State failed', admits mayor of Viamão about missionary arrested for beating son Family was accompanied eight months ago by the US Missionary Guardianship Council confesses to beating their son Understand the case The Civil Police claim that the 3-year-old boy was allegedly beaten by his own father in Viamão. The North American missionary confessed to the crime and has been in prison since Sunday (5). In a statement to the Civil Police, he said that the motivation for the attacks was that his son had not said "good morning" to him. According to delegate Luana Tamiozzo Medeiros, deputy at the Police Station Specialized in Women's Assistance (Deam) and responsible for the investigation, the man reported having punched the child's chest and abdomen, in addition to hitting the boy's head against the floor. The crime took place in the district of Águas Claras, where the family lives. The boy was hospitalized in a very serious condition in the pediatric Intensive Care Unit (ICU) of the Hospital de Pronto Socorro (HPS) in Porto Alegre and died on Wednesday night (8). The attacker himself took the boy to Viamão hospital on Sunday. Due to the severity of his injuries, the boy was transferred to the capital. Upon noticing the multiple injuries, the medical team called the 18th Military Police Battalion (BPM). The American was arrested red-handed at the hospital. On Monday (6), during a custody hearing, the court converted the act into preventive detention. This Thursday (9), Mayanna Angelina Rodgers, Oliver's mother, was also arrested preventively. According to the police, she was arrested for inaction. In a statement, Mayanna's defense says that she "is a victim and was in a state of serious vulnerability in the context of domestic violence, physically, emotionally and spiritually." Read the full position below. According to authorities, the family has lived in Brazil for nine years and had moved to Viamão around eight months ago. Mother of three-year-old boy killed after being beaten by his father is arrested for omission, says police Reproduction/Social media What the woman says "TECHNICAL NOTE FROM OLIVER'S MOTHER The defense of Mayanna Angelina Rodgers is collaborating with the authorities, remaining at the disposal of justice to clarify the facts. It states that the constituent is a victim and was in a state of serious vulnerability in the context of domestic violence, physically, emotionally and spiritually, circumstances that deserve careful and technical investigation, without any early trial. The defense trusts in due legal process, contradictory and broad defense, under the terms of the Federal Constitution, reaffirming that only the broad procedural instruction will allow the correct investigation of the facts. Out of respect for the child's memory and the confidentiality of the investigations, no other information will be provided. Oliver Golden Grayson was 3. years Personal archive VIDEOS: Everything about RS