Glenn, We have flash mobs stealing stuff from a retailer. If the difference between larceny and robbery is the element of fear, are the flash mob participants robbing the retailer (I'm sure they are in fear)? Robbery in most States constitutes intent to cause death or GBI. Number of attackers constitutes ability. If they are closing on you that would give them opportunity.
Seems like a flash mob could be met with lethal force if they refused to stop advancing on you after you confronted them.
How do you see it?