I just don't think we have enough evidence at this point to say if this was a stranger abduction, or someone who knew Sierra. Some of the most horrible crimes EVER were committed by strangers, and often in situations where everyone just KNEW it had to be a family member - Jessica Lunsford, Danielle Van Dam, Jessie Duggard, even Elizabeth Smart's family was suspected for a while. I am keeping an open mind, but this just does not FEEL like a family abduction to me! The earlier post by SmoothOperator was fabulous, and I actually agree with everything Smooth said!!! In Sierra's case, however, I can still see a situation where a complete stranger.... or VERY peripheral person (i.e. stalker) found a reason to be on the road that morning and used something like a stun gun on Sierra, which resulted in a VERY quick, totally inescapable situation where she was in the vehicle incapacipated before you could count to 25.