An increasingly common homicide trend is the multiple perpetrator/lone victim style of attack. This means it will be your word against the word of the victim’s friend(s). If you take them all out, it will be your word against the word of the national media. It’s best to just cross the street and avoid confrontation. If they cross too and continue towards you, prepare yourself for combat.
Non illegitimi carborundum (don’t let the bastards wear you down).
Groping for an imaginary gun might get them to reconsider, if nothing else worked. Even better if it’s not imaginary.
By the time you think you need to cross the street, the predators have already ID’ed you and figured out counters to any effort at evasion. You are the gazelle and they are the hyenas.
If you have to cross, use that time wisely by drawing your weapon, taking it off safe, putting a round in the chamber, knowing you are now dealing in quarter to half-second intervals. You should be thinking in terms of target analysis, first salvo being one each to attackers, followed by second shot at misses and those not slowed down by the first round.