The london trick beef? a.k.a 5th Floor Fixie Crew Implosion

Loic was a "member" of the 5th floor "crew". They parted ways on bad terms.
Loic trolls them online, pretends to be David leaving comments on Prolly's blog. Something was said about Davids wife.
Another "member" of the 5th floor arranges to meet Loic to buy a frame off him. 5 of them turn up and David punches him in the face and others attack him while on the floor.
Then this thread was started, David says you should expect to get assaulted if you troll online.
Now it appears David also threatened to kill Loic for telling the police via a text.

Who's this David fella, is he on here?