Can I geek out and admit something potentially quite embarrassing?
I've seen people on this board conduct various recreations with tires and sand and dirt and even cordless phones, but not with pantyhose.
Like many, I've seen this disguise in the movies (usually in the context of bank robbery), so I was curious: how much do a pair of black pantyhose truly mask your appearance?
In the privacy of my home (and ok- after a glass of wine

I tried it. I even threw on a large dark overcoat for the full effect.
My observations:
1. Wow it's hard to see out of pantyhose. Granted I tried out the least forgiving kind -opaque/noir, but I can't imagine trying to see in the dark with very dark pantyhose over your head.
2. I was surprised how much of my facial structure you COULD see (I took a selfie, because as per #1...I could not see very well). My nose, neck, and jawline remained incredibly distinct
3. Even with the addition of a bulky overcoat, some of my most basic physical features were recognizable
So what does my little experiment conclude? (aside from the fact I'm overly curious if a little nutty?)
IMO even though I was "disguised" if I'd come upon anyone who might recognize me sans pantyhose, they'd have recognized me WITH the hose on my head.
Therefore, imo- given DR's presence on camera in media interviews, I have a hard time believing Trevor or Aaron wouldn't recognize him. (I suppose there's the slight possibility that they did somehow say they recognize DR as the potential perp and we've just not heard that info, but I doubt it)
And of course this isn't to say that DR didn't have a hand in the abduction, willingly or otherwise (e.g. what if the travel agent who booked his parents' trip to Europe did it...)...but I have a hard time believing DR wouldn't be recognizable to the boys even with pantyhose over his head.