... he got super allergic to everything? (Crab, nuts, leather, stc)
Hmm but I still can't deduce anything, probs should read these a couple more times
Edit: nope, I got nothing
If we go with "one of the brothers is fake" theory, the third brother is indeed the most suspicious. From the way he told story about the day they got burned, he's the one that said the most detailed explanation. Could be because he's trying too hard to convince the others, could be that he's just have a good memory
Other things to note:
From the facial structure, from the three, only the second brother has a cleft chin. But then the first brother also had one as seen on the picture. The second brother is also the only one with the greek (?) nose.
Then, the third brother is the only one that has free earlobes. Which adds to the suspicion
I still don't know the significance of the glasses. But since we have establishes that the oldest brother have allergies, then it probably has something to do with it. What allergies he could probably had that the culprit "had to" place that metal glasses? What came to mind is that the oldest brother could have metal allergy too, but I can't see the significance of that