My argument is we cant see if there is a guy holding a glass bottle, how do we know if there is an imminent threat??? You do not need to be cornered in a corner to use self defence! I do cash in transit for a living and we get trained on these scenarios all the time. Running away or "tactical retreat" is an option to get yourself out of a situation but its not your only option. There is sooo many factors that come into it and to base a decision on a 20 second video from accross the road is ludicrous. 4 or 5 of those guys could have been after Asofa out the front, there could be weapons, there could be a threat to harm him. All of these things would lead to acceptable self defence.
In my line of work say a guy runs at me with an axe from 5 or 6 metres away, sure I could run away BUT if i decide to shoot the guy dead I am 100% justified in doing so because "in my opinion" I feared for my safety .... As long as Asofa says "in his opinion" he felt for his safety then you would have to be 100% certain that he is not telling the truth to say that what he did is not justified! And with the small amount of evidence we do have you cannot say 100% he was just being a thug.