"These people are stupid".. They obviously knew their acts would be known by those that were there, but I'm guessing they thought the extent of exposure was knowledge of their acts by those within their circle, truely thinking the property was secure and "what happens there stays there", unless you turn on your team and get burnt..  How often has proof been displayed to the public when they burn one of their own? Public opinion and group think/ mockingbird did enough damage, the proof never came out, word of mouth was enough to shut anyone down that went against them, physical evidence being collected wasnt necessary for blackmail to work, they'd just kill if they couldn't silence and control otherwise.  They never turned on their team, but got blindsided by exposure anyways, hence panic.. never saw it coming..