One of factor makes me thinking they are well planned for anything, know what it is? I have a question that does not make any sense when it comes to this kind of escape. The question is... where are the power tools? The way the pipe were cut, it has to be power tools, BUT where are they? How it was acquired, and where are they right now? And if they didn't have the ride, there won't be reason for them carrying power tools around, too much weight for them to carry, and they need to conserve energy and would leave power tools somewhere to be found, so far none was found 
That's why I think they had plan B already and already had a ride out.
This is one of tell-tale that these scumbags had done this very cleanly.
