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The questions about which vehicle RB drove at the time, and some knowing about the blue one but not the green one.. i wonder what that's about, ie does it matter which one, since both vehicles were old? And they have this tire.. but yet they don't bother to check the serial number on it to see from which year, make, model of vehicle it may have been from? I didn't know that tires had serial numbers.. but wow, more potential evidence not followed up? i guess it would be rather meaningless evidence anyway, since there are likely a number of vehicles that could have fit tires like that, and the tire may just have been tossed into the ravine by a passerby.
http://www.thespec.com/news-story/6...-defence-brings-disturbing-evidence-to-court/
I agree that the questioning about vehicles is odd. As to the serial number of the tire, the point is LE could have checked the serial number and it appears they decided it was old and didn't both to. Less sophisticated investigation indeed!