Warning-a depressing post:
I can think of only one scenario that could have Kyron still be alive; that is if he was taken by someone who wanted a child for some reason AND that person lives with other people. Due to his age (Kyron's) it would not be like taking a baby or toddler, as Kyron could speak out, shout, call out his name, etc and even probably get out of a house while the abductor went out for food, etc, unless watched by another adult, or group of adults, such as in some type of commune or co-op setting. People choose babies for one reason, as a rule, to replace one they lost for example, and sadly, choose boys Kyron's age for worse reasons and usually do not keep them around as potential witnesses. Are there lots of oddball groups living together in a rural setting outside of Portland, I wonder?
IMO, a single person who took Kyron is not going to be found walking around Walmart with him, as Kyron could easily break away, attract enough attention to be noticed, even if not recognized as the missing boy. People would question any child being "restrained" in any way in public these days.
The reason that someone-who-knows-him-took- him- but -he -is -still -alive theory does not work for me, is because they would need a place to "keep" him and maintain him and this is not easy to do. Anyone Kyron knew or commented on to SM, such as a janitor who is friendly, or the man who brings water and always winks at him-Kyron probably told his SM about these people, as kids like having adult friends and they have probably been checked out. I am sure she had been asked, repeatedly, about anyone Kyron ever mentioned, as well as LE looking at everyone associated with school or neighborhood in any way. And stats have told us that children taken for sexual purposes do not survive long after the assault, mostly due to the ability to describe their abductor.
I do not feel that Kyron is alive at this point or that LE has a clear idea of what happened to him. Everything they seem to be doing points to covering all bases and the "natural progession" of a case without solid leads. They may well have a lead that points to the island, but it may not end up to be the right one. And I fear that even if Kyron is found (deceased), we may never know what really happened.
I am sad that I feel the way I do, and hope, of course to be proven wrong. JMO