Another suspect dies and another is arrested in an operation involving the death of a pregnant woman and her child in MA David João Gaspar Penha, known as "Mucurão", was the second suspect in the attack that killed a pregnant woman and her 4-year-old son, who died in a confrontation with the police in the rural area of ??São João Batista. The information was confirmed this Sunday (12) by the State Secretariat for Public Security of Maranhão (SSP-MA). According to the police, David had already been arrested and had convictions for other crimes. Also on Sunday, Joelson Braga Araújo, another suspect of participating in the crime, also died during a police action. According to the SSP, Joelson wore an electronic ankle bracelet as per court order. ? Click here and subscribe to the g1 Maranhão WhatsApp channel On the same day, a third suspect involved in the attack, Matheus Costa Pinheiro, was arrested in São João Batista. Others involved have already been identified and continue to be sought by security forces. The names were not disclosed to avoid compromising the investigations. The searches include teams from the Civil Police, Military Police, Official Forensics, Air Tactical Center (CTA), Kennel and intelligence sectors. READ ALSO: Police have already identified suspects in attack that killed pregnant woman and child in MA, says police chief Suspect involved in attack that killed pregnant woman and child dies in confrontation with police in MA INVESTIGATION: SSP names partner as main target of attack that killed pregnant woman and child Joelson Braga Araujo (left) and David João Gaspar Penha (right) are suspected of participating in attack that killed pregnant woman and child Reproduction/Montage g1 Investigation The case is investigated as a double homicide. According to the SSP-MA, the elements gathered so far indicate that the crime is related to a dispute between criminal factions. According to the SSP, Josef Abreu Santos, companion of Samira Costa Correia and father of Yan Kaleb Costa Santos, aged 4, is identified by the investigation as the main target of the attack. He was interviewed by the police authority. The secretariat did not say in what condition Josef gave his statement or disclose other details, so as not to compromise the progress of the investigations. Family members said he had been seen in the house shortly before the attack. According to the general delegate of the Civil Police, Augusto Barros, the police are investigating whether a person close to the victims had a connection with a criminal group and was accused of changing factions or betraying the group. He highlighted, however, that this version has not yet been proven. "There is a lot of speculation and a lot of rumors that mix with other versions, sometimes creating different versions. So, our job is to gather all this information and work on all the points of each version until we actually understand what happened", he explained. Attack would have involved around 15 men The victims were identified as Samira Costa Correia and Yan Kaleb Costa Santos Reproduction/Social Networks The victims were found charred inside a burned-out house on Friday (10). According to police, armed men invaded the property, fired several shots and set fire to the place. Witnesses reported that approximately 15 men participated in the attack. The Military Police found around 100 cases of ammunition already fired at the scene. There were materials of 9 mm, .38, .40 and 12 calibers. Forensic investigation finds out how the victims died The forensic examinations should clarify the dynamics of the attack and determine whether Samira and Yan died as a result of the shots or the fire. Due to the conditions in which the bodies were found, the release by the Forensic Medical Institute (IML) was conditioned on the performance of a DNA test with material collected from a first-degree relative. According to SSP-MA, the exam has already been carried out. The secretariat did not say when the bodies will be released. Investigations and searches for the others involved continue in the region. The SSP-MA stated that other information will not be released at this time to preserve the progress of the search.