Thanks-- I didn't find that from the original link. But I don't really think it supports your argument.
It's pretty hard to identify a person from just the eyes, but to the extent that shows anything it seems to contradict the claim to me: the face on the left appears to me to have a much more prominent brow ridge compared to the face on the right-- like a shelf above his eyes on the left, while the right dips in near the nose.
As far as the officer's ex-wife saying 'that's my mask' -- the thread shows a bunch of other pictures of protesters with the same mask.
This also explains how they could investigate the claim quickly-- they only needed to identify the location of a single officer.