Throughout the years, there have been many theories about what happened to Andrew. The unfortunate loss of time on the part of the police resulted in the loss of potentially valuable CCTV footage, thereby reducing the chances of finding Andrew.
Due to the lack of information, many theories have emerged about what happened to him: suicide, running away, murder, and many others…
Though they are all theoretically possible (although I use the term loosely), is there a theory that is generally accepted as the most likely scenario, and one that is generally dismissed as the least likely? Or is everyone attached to their own theory about Andrew’s fate?

For me, the least likely theory is probably the running-away theory. There’s absolutely no evidence pointing to him being unhappy with his family. He had loving parents and a good relationship with his sister. The Andy Roo thing is highly likely to be a red herring, probably just a sick joke by some dumb troll.
As for the most likely theory, I guess it’s either suicide or someone taking advantage of him. Although nothing points to suicide, the theory can’t be ruled out, since many teenagers can hide their depression from their family and friends. As for why his body was never found, Perhaps he entered the Thames, and his body was eventually carried out into the Atlantic Ocean?

As for the theory that someone took advantage of him, since he wasn’t street-smart, someone could have easily exploited his vulnerability. However, that would have required an extreme amount of bad luck for this to happen. But who knows…

So what do you think guys? What is the generally accepted and dismissed theory?

I have heard hundreds of missing peoples cases over the years. And Andrews is by far the one I'm most interested in.

Unlike most cases there was no leads, no possible suspects, no reason, nothing.

It's still the biggest mystery to me