Volpe shot her after a violent fight, then called Nicola Sapone up and they realized she was still alive so they badly tried to hide her into the greenhouse of Ballarin's parents' home.




Hours later Volpe and Ballarin took a heavy dose of cocaine and heroin and decided to get rid of Mariangela's car by drowning it in a river into the nearby, but they had a car crash and were arrested.

The police investigation of the Pezzotta murder, and interrogation of Volpe using the information provided by Tollis led to the discovery of the buried bodies of Marino and Tollis and the revelation of the sect's existence.

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 him to death with a hammer, after Volpe and Sapone had stabbed him and Chiara Marino.

Additionally sect members were accused of pushing their drummer, Andrea Bontade, to commit suicide because he refused to join Volpe and Sapone at Somma Lombardo and help them kill Marino and Tollis.

On September 1998, Andrea Bontade drank heavily, then killed himself by crushing with his car.

Authorities also investigated whether the group had any links to a possible wider network of Satanists in Italy.