lack of concussion injuries? Ok.. that's fine and dandy, until you see the concussive shockwave alone (not causing bodily injury with flying bearings or metal) still knocked a runner on his ass after his knees completely buckled. What's the max PSI that said pressure cooker can take? Was it truly designed to be a directed blast, or did it turn out to be weaker around the point where the lid would seal and just appear to be a directed blast? (physics says this would be a yes - the lid/seal is definitely weaker - especially in terms of quick/hella fast expansive pressure, as pressure cookers aren't designed to handle immense pressure compared to a few other designs) Am not arguing, just stating that it looks to be more than just a bit a bit of low pressure explosive used.. given that the forensic photos by no means showed any sort of a cone, or device capable of directing the blast out.. and as such, probably sprayed bearings out the sides as well. At this point, short of seeing the mass spec / gas chromatograph results and trajectory calculations based on where the devices are.. this is pure speculation and is open to debate / your own interpretation.
