[1][2] The persons involved in the group were Andrea "Isidon" Volpe, Nicola "Onussen" Sapone, Paolo "Ozzy" Leoni, Mario "Ferocity" Maccione, Pietro "Wedra" Guerrieri, Marco "Kill" Zampollo, Eros "Kaos" Monterosso, and Elisabetta Ballarin, who wasn't part of the group but was romantically tied to one of the members and was present to the scene of one of the murders.
Fabio Tollis, a sturdy young man (6 feet and 2 inches tall, 220 pounds; 185 cm, 99 kg) desperately tried to defend himself and her friend Marino but was overpowered by the larger group.
Becoming convinced of a connection between Satanism and their disappearance, Michele Tollis spent the next six years steadily constructing a file on their activities and the bands in which they had played.
Mariangela Pezzotta, 27-year-old shop assistant, former girlfriend of group member Andrea Volpe was first shot in the face, mutilated and later buried while she was still alive[4] in a greenhouse in the nearby town of Golasecca not far from Somma Lombardo.
Volpe confessed he invited Pezzotta for a friendly dinner but had already decided to kill her because she knew too many details about the sect and Tollis and Marino's murder.
and threatened him; they tried hard to hide the dying girl's body in the greenhouse of Ballarin's parents' home and hit her several times with a heavy spade before burying her still alive.
After the Pezzotta murder Volpe was arrested, and a few months later confessed to the earlier killings and led the police to discovering the bodies of Tollis and Marino.
As the investigation continued, Mario Maccione, who presented himself as "the medium" of the group and had been regarded by Tollis as his best friend, confessed to having beaten Fabio to death with a hammer, after Volpe and Sapone had stabbed him and Chiara Marino.
The repeated assumption of drugs left Bontade in a confused and disconnected state of mind, which brought him to have noticeable issues performing tasks in his everyday life, his parents and friends recalled.
Lina Marino, mother of the slain Chiara, was outraged at the relatively light sentences Volpe and Guerrieri had received, due to their cooperation with prosecutors.
In February 2005, a Roman Catholic university connected to the Vatican began offering a two-month course on diabolical possession and exorcism for priests and seminarians.
[3] In light of revelations from the Beasts of Satan investigation and trial, as well as growing public concern, Italian police stated their intention to create a special unit focusing on new religious sects, particularly Satanists and other violent ritualistic groups.
[22] During the annual National Carabinieri Day celebrated in Varese on 8 June 2005, the first instance public prosecutors Antonio Pizzi e Tiziano Masini, as well as the police officials Enzo Molinari, Quaranta Attilio, Giuseppe Notaro and Paolo Marcolli, were awarded by the head of the Italia Arma dei Carabinieri's body for the investigations on the Beast of Satan's murderers.