The attack has been used to spread conspiracy theories, both by Bolsonaro's supporters and critics. On one hand,
Bolsonaro supporters created a documentary called
A Facada no Mito, released on
YouTube on December 22, 2018, raising points that try to contradict the version of the PF, implying that the attacker did not act alone, and may even have had Bolsonaro's own security team as accomplices. In addition, suspicions were raised about posts on social networks that suggested that other demonstrators were co-perpetrators of the crime, promoting harassment and threats against these users. The latter voluntarily went to the PF to provide clarifications and the hypotheses raised were not upheld. They claimed it was a strategy to excuse Bolsonaro from participating in political debates and to secure him greater media coverage.
Involvement of third parties Socialism and Liberty Party and Jean Wyllys On 6 September 2018, singer
Netinho posted on his social media that the attack on Bolsonaro had been ordered by the PSOL party, accompanied by a false video showing Bolsonaro supposedly being punched in the stomach after the stabbing. The theory was supported by
Ana Paula Henkel on 4 January 2022, during the "Pingos nos Is" program on
Jovem Pan, suggesting that de Oliveira might have had a false alibi. At the time, Bolsonaro had just removed his nasogastric tube and was about to be discharged from the hospital. In 2019, a false claim spread that the Federal Public Prosecutor's Office (MPF) had identified R$50,000 in deposits from Jean Wyllys to Adélio's lawyer. Despite the secrecy surrounding the deposit details, investigations concluded that de Oliveira acted alone, and Wyllys' name was never mentioned in any official inquiry. Also in 2019, Regina Villela, a
Social Liberal Party (PSL) candidate for federal deputy in
Ceará, posted a video making a series of accusations against Wyllys. First, she claimed Wyllys had resigned from his political office because the new legislature did not offer
parliamentary immunity. This was false, as the new legislature only changed the rules regarding "special forum" privileges for crimes committed during a mandate. She also claimed Adélio had contacted Wyllys in the
Chamber of Deputies, and that there had been an attempt to fabricate an alibi to remove suspicions since there was a record of Adélio entering on the same day as the attack. The story was originally reported by the news site
O Antagonista, which published that Adélio had entered the House twice on the day of the attack. However, this visit record was from 2013, and there were 432 other deputies in the same building. The Legislative Police confirmed that the disinformation stemmed from a receptionist who had mistakenly added the entry record four hours after the attack. In May 2020, pro-Bolsonaro blogger Oswaldo Eustáquio Filho accused PSOL and
Jean Wyllys of being behind the attack. He also claimed there was a photo of an activist known as "Mergulhador" with Adélio Bispo de Oliveira, and that the Federal Police had linked him to the stabbing. Eustáquio claimed he had known Mergulhador since 2016 and that he was present during the attack. On May 26, 2020, Mergulhador confirmed that a photo with Adélio had been posted on Facebook, taken at a protest against former President Michel Temer. He also stated that Adélio had complimented Wyllys and suggested that they had met in the Chamber of Deputies, a claim similar to the one made by Regina Villela. Mergulhador was questioned by the Federal Police and admitted to the photo's existence but stated that he only recalled someone mentioning Wyllys’ name. He also clarified that his interaction with de Oliveira lasted only a few seconds and that it was not proven that he was present during the stabbing. Mergulhador was ordered to pay R$20,000 in compensation to Jean Wyllys in 2022. Oswaldo Eustáquio Filho was also convicted in February 2022 and ordered to pay R$10,000 in damages and serve four months and 20 days of open detention. Judge Telmo Zaions Zainko stated that the theory emerged from a distortion of a statement given to the Federal Police. In 2021, it was reported that Jean Wyllys had been summoned to testify before the Federal Police in September 2018 and had fled to
Barcelona to avoid justice. Wyllys, however, had been living in that city at the time. Other prominent figures who have endorsed similar conspiracy theories included Jair Bolsonaro, Carlos Bolsonaro, Eduardo Bolsonaro,
Marcos Feliciano (who was ordered to pay R$41,800 in compensation to Wyllys),
Marcos do Val (also ordered to pay R$41,800, with a daily fine if he failed to delete his social media posts), Olavo de Carvalho (who was instructed to delete posts within 48 hours and pay Jean Wyllys R$10,000 if he did not comply),
Bia Kicis,
Bibo Nunes, , Ed Raposo, and Otávio Fakhoury. All are facing lawsuits from Wyllys. Kicis and Fakhoury are also under investigation by the Supreme Federal Court for their involvement in digital militias.
Worker's Party False accusations against trade unionist On 8 September 2018, Bolsonaro engineer Renato Henrique Scheidemantel accused PT banker and trade unionist Lívia Gomes Terra on his Facebook page of having given the knife used in the crime to de Oliveira. The story grew over time and they began to dissect her life on social media. They found out a lot of information about her, including her profession and phone number, and she also received threats in private messages. As a result, she reportedly developed
post-traumatic stress disorder and
panic disorder. She said that for the past four years, she has only left the house to go to work or had to be accompanied. Investigations by the Federal and Military Police show that on the day of the attack she was at home with a doctor's certificate recovering from an illness. Scheidemantel was sentenced to 10 months and 20 days in prison. As a first-time offender, however, his sentence was reversed to a restrictive sentence of rights and community service.
Silas Malafaia's false accusation against Dilma In September 2018, evangelical pastor
Silas Malafaia made a series of posts accusing de Oliveira of being an advisor to
Dilma Rousseff, a post which had great repercussions during the elections. Dilma's press office said it would sue Malafaia for libel, slander and defamation. Then, on 10 November 2019, the pastor retracted his statement on social media, saying that he had posted fake news by accident and that Adélio actually had ties to PSOL.
Modified photos with members of the Workers' Party In September 2018, a photo circulated on social media showing
Luiz Inácio Lula da Silva, Dilma Roussef,
Gleisi Hoffmann,
Guilherme Boulos and
Luiz Marinho with a man identified as Adélio Bispo. However, he is João Paulo Rodrigues, leader of the
Landless Workers' Movement (MST). The image was originally published on 6 April 2018, on the
G1 news portal, entitled "Lula spends the early hours of the morning at the ABC metalworkers' union after arrest order. It circulated again in 2020 and 2021". Another out-of-context photo that circulated was one of Gleisi Hoffmann with a supporter, posted on the party president's social networks on the same day as the attack. The supporter was identified as Adélio Bispo de Oliveira, but the photo was taken in
Curitiba. The image's
metadata confirms its origin. This photo circulated in 2018 and came back into vogue in 2022. In 2020, two photos of Lula with a man identified as Adélio Bispo circulated on social media. In fact, this man is orthopedic doctor Marcos Heridijanio Moura Bezerra, a candidate for federal deputy in 2018.
José Dirceu's sentence taken out of context In 2021, Carlos Bolsonaro and other Bolsonaro supporters shared an excerpt from an interview in which ex-minister
José Dirceu said that the attack on Bolsonaro “was our mistake”. In an interview for , Dirceu says he was listing facts about the government and the excerpt was out of context.
Fake Anonymous publication On 14 February 2022, claims that hacker group
Anonymous had released a new statement by de Oliveira in which he admitted that he had been hired by the Workers' Party. The news was spread on Twitter by the profile @AnonNovidades, an alleged member of Anonymous. The Federal Police deny that the deposition took place. The Bolsonaro news site
Terra Brasil published content based on the tweet.
Accusation of collusion between press and PT Bolsonaro content creator
Gustavo Gayer accused the PT of having hired Adélio Bispo de Oliveira and the press of covering up the case. The original rumor appeared on the Facebook page "Partido Bolsonaro". These claims resurfaced in 2019. Manuela herself denied the story in an interview with
Quebrando o Tabu. Substitute
Justice of the Superior Electoral Court, , ordered Facebook to provide the IP address and other details about the page's administrators.
Social Democratic Party It was rumored that de Oliveira had joined or tried to join the
Social Democratic Party (PSD). The party was investigated, but it never happened. Adélio claims that he tried to disaffiliate from the party because he feared that he had joined in absentia.
Order of Attorneys of Brazil and Supreme Federal Court On the day that de Oliveira was acquitted on the grounds that he was legally incompetent, a rumour emerged that he had his telephone and bank secrecy protected by the
Order of Attorneys of Brazil (OAB). In fact, the confidentiality belongs to his lawyer, Zanone Manuel de Oliveira (no relation). On 21 December 2018, the Federal Police collected the lawyer's electronic equipment and documents to investigate whether Zanone had links to the PCC. The following month, the OAB of Minas Gerais asked the Federal Regional Court of the 1st Region to suspend the analysis of the materials for violating the professional secrecy of the practice of law, a request that was granted. The
Attorney General of the Union (AGU) appealed, but at the time the rumor appeared the request had not been analyzed. Another entity that would be protecting Adélio Bispo's confidentiality would be the
Supreme Federal Court. In reality, the Federal Police analyzed 2 terabytes of image files, 350 hours of video, 600 documents, and 700 gigabytes of media data, along with 1,200 photos obtained from cell phones, a computer, and other documents.
Sergio Moro and Marcelo Valeixo On 24 April 2020, then-Minister
Sergio Moro left the Ministry of Justice, accusing President Jair Bolsonaro of interfering in the Federal Police. To justify the former judge's departure, Bolsonaro supporters started publishing conspiracy theories. In relation to Adélio Bispo, the theories claim that Moro interrupted the investigations.
Alexandre Ramagem, director of
Brazilian Intelligence Agency (ABIN), allegedly called Bolsonaro to say that Moro and Maurício Valeixo were hiding information about the case. Moro said that the rumors were fake news.
Documentary produced by Brasil 247 The arguments come from a documentary by
Brasil 247,
Bolsonaro e Adélio - Uma Fakeada no Coração do Brasil, by investigative reporter Joaquim de Carvalho. The apparent absence of blood at the scene of the stabbing and the quick medical and police response are considered signs by proponents of the theory that the whole event was staged. The conspiracy theory was spread mainly by supporters of former president Lula, such as the activist Thiago dos Reis, In September 2021, federal deputy
Alexandre Frota submitted a request to open a Parliamentary Inquiry Committee (CPI) to investigate the case. According to
Cabo Daciolo, the event was "a spectacle by the Freemasonry, Silas Malafaia, and the
New World Order". The Brasil 247 documentary was removed from the YouTube platform on 10 August 2022. YouTube claimed that its hate speech policy prohibited the denial, trivialization, or minimization of historical events, including the stabbing of Jair Bolsonaro. The
Workers' Cause Party (PCO) condemned the action, calling it censorship. == Repercussions ==