There is very little known about the girls disappearance. As a consequence, there is a wide variety of posibility when it comes to theories as to what happened. Going with the evidence is probably the best route. Without evidence, speculation often takes over.
Possibilities cover a wide spectrum, but when considering various possibilities, one has to also consider Probability.
For example, the girls probably left Wheaton Plaza early in the afternoon, 25 March 1975. They could have left by way of many different possible exits, but the more probable exits would be those closer to their home.
There might have been several possible routes home they could have taken, but their usually traveled route would be the more likely.
Taking a theory further, one has to consider not only what is possible but also what is probable - and where ever possible to base it on known factors.
Without a suspect, one has the problem of working strictly with reason, deduction, and generality. If you take a named Person of Interest and throw them into the mix as a potential suspect, then you have to consider that particular person, his/her patterns, personality, Modus Operandi, resources, etc.
Possibilities cover a wide spectrum, but when considering various possibilities, one has to also consider Probability.
For example, the girls probably left Wheaton Plaza early in the afternoon, 25 March 1975. They could have left by way of many different possible exits, but the more probable exits would be those closer to their home.
There might have been several possible routes home they could have taken, but their usually traveled route would be the more likely.
Taking a theory further, one has to consider not only what is possible but also what is probable - and where ever possible to base it on known factors.
Without a suspect, one has the problem of working strictly with reason, deduction, and generality. If you take a named Person of Interest and throw them into the mix as a potential suspect, then you have to consider that particular person, his/her patterns, personality, Modus Operandi, resources, etc.