I am not sure if this helps or not, but here is a link to known Antifa operatives. Is the guy we are looking for connected via a social media site with any of these people?
https://www.blazingcatfur.ca/2018/08/07/police-publish-arrest-records-like-normal-and-antifa-freaks/
Q already knows who it is. It took him "2 hops" to find him with facial recognition. -→ Not easy.
#6799
>>5319856, >>5319930, >>5319939 The hunt for antifa guy, long hair guy was arresteed in 2017 riots
>>5319874 The hunt for antifa guy, agent provacatuer comparison
>>5320376, >>5320337 Berkeley Antifa FB page
>>5319954 Berkeley flyer
>>5319924 NSA surveillance allows for "2hops" in the communication chain
>>5320347 Defense Patrick M. Shanahan’s Meeting With Belgian Deputy PM
>>5320465 Known antifa operatives