It is significant that the police and medical examiners were convinced the holes found in the head, arms, stomach, anus and legs were not produced by bullet wounds. What is most disturbing about the anal incision and the extraction of anal and digestive tract tissue is that it is a carbon copy of the surgery seen in so many UFO-related animal mutilation cases. While no evidence linking the Guarapiranga reservoir mutilation case with UFOs has been found, Brazilian ufologists and police have hinted that there may be at least a dozen or more cases similar to this one. In fact, Brazil has had past incidents where UFOs have reportedly attacked people, and possibly taking blood from them. The July 12, 1977 edition of the JORNAL DA BAHIA reported that, "A fantastic story of a flying object emitting a strong light and sucking blood from people, circulated from mouth to mouth among the population of the counties of Braganca, Vizeu and Augusto Correa in Para', where many people fear leaving their homes during the night so they won't get caught by the vampire-like light from the strange object which, according to information, already has caused the death of two men. No one knows how the story started, but the truth is that it reached Bele'm and grabbed headlines in the local newspapers."
Months later, on October 8, the newspaper O LIBERAL launched the first in a series of reports, about the Chupa-Chupa (suck-suck) phenomenon. "Sucking animal attacks men and women in the village of Vigia: A strange phenomenon has been occurring for several weeks in the village of Vigia, more exactly in the Vila Santo Antonio do Imbituba about 7 kilometers from highway PA-140, with the appearance of an object which focus a white light over people, immobilizing them for around an hour, and sucks the breasts of the women leaving them bleeding. The object, known by the locals as "Bicho Voador" (Flying Animal), or "Bicho Sugador" (Sucking Animal), has the shape of a rounded ship and attacks people in isolation. One of the victims, among many in the area, was Mrs. Rosita Ferreira, married, 46 years old, resident of Ramal do Triunfo, who a few days ago was sucked by the light on the left breast, and passed out. Increasingly it looked like she was dealing with a nightmare, feeling as if there were some claws trying to hold her. She was attacked around 3:30 in the morning. Another victim was the lady known as "Chiquita," who was also sucked by the strange object with her breast becoming bloody, but without leaving any marks."
