Thinking about how one would go about successfully abducting random, unknown men in their 20s, I imagine that I would prefer them to be intoxicated (so their reflexes may not be as quick, their reasoning slower, and their inhibitions down). I'd scope out a populated place but one that is off the beaten path and where I can easily see where the cameras are. I'd wait with my car nearby, on a not-freezing-cold night, and keep my eyes peeled for someone that I could corner. Maybe I'd have a badge and say I was an undercover cop and I was arresting them for public intoxication and urination. I'd bind their hands and lead them over to my car, just as a cop would, bundle them in, lock the doors, and drive off.
I have absolutely no evidence that this has occurred in any of the cases, but it's something to consider.
