A massive forensic investigation had begun on the Kellestine farm, and by May the police had found in the fireplace the charred keys to the houses and apartments of the "Shedden Eight" murder victims, and a partially burned business card reading ONICO, the name of Flanz's computer company. On 24 May 2006, Constable Al Dubro discovered under Kellestine's micro-wave a secret doorway, where the police found Kellestine's gun cache. Dubro called Beesley, who found 18 guns in Kellestine's gun cache. Ballistic tests showed some of the guns found in Kellestine's cache were the murder weapons. On one of the handguns, a Mossberg, was found microscopic traces of blood, which DNA testing showed came from Flanz, Kriarakis, Sinopoli, Jessome and Salerno while on another handgun, a Hi-Point .380, had microscopic blood traces from Trotta and Sinopoli. The floor of Kellestine's barn was found to be soaked in hydrochloric acid from Kellestine's "wet work kit". Inside Kellestine's farmhouse, the police found a ring that had skin flakes embedded in it; DNA testing showed that the skin came from Flanz. The police also found a baseball cap in the farmhouse that had a hair in it and which DNA testing revealed to be from Kriarakis. As an undercover agent, M.H. began to speak with Mushey and Aravena about the massacre while wearing a wire, and found it easy to get Mushey to start talking by telling him that Sandham was boasting about killing 3 of the 8 men in underworld circles, which led Mushey to say that Sandham had killed only Raposo and botched the killing of Flanz.