I'm struggling with this one. With 'ordinary' crimes, you can sort of try to put yourself in the criminal's shoes, try to figure out their twisted logic.
The problem I'm having with LVD and CD and the rest is that I can't convince myself they actually believe all this stuff about zombies.
If they really do believe the end of the world as we know it is coming this summer and they are going to be in charge of things after the 'end' comes, then perhaps LVD honestly isn't sweating things - she believes that one way or another, her deity will set her free in time to do her 'god' duties.
It's just so hard for me to believe folks like this actually believe the stuff they spout and it isn't just some role-playing fantasy. But if they do believe it, then LVD and CD can just 'run out the clock' until summer when they'll miraculously take over during the 'end times'