I'm not sure specifically as I haven't read this exact short story. But generally, it could be about a person who is bleeding on the sidewalk, perhaps due to an accident, a fight, or some kind of health issue. It might explore themes like vulnerability, the reactions of passers - by, or the struggle of the person in pain.
One main theme is the senselessness of violence. The young boy is stabbed just because of the gang he belongs to. Another theme is identity. The boy realizes at the end that he is more than just a 'Royal' (his gang identity), he is a person, Andy.
Since I have no information about this short story, the main characters could be diverse. Maybe there's a doctor or a nurse who happens to be passing by and tries to help the bleeding person. Or it could be a detective if the bleeding is part of a crime scene. There could also be a family member of the bleeding person who is searching for them.
One of the main themes is identity. The boy, who is a Royal, is identified by his jacket even on the verge of death, showing how a group identity can overshadow an individual's humanity. Another theme is the senselessness of violence. His death is a result of a meaningless gang - related stabbing.
The setting of the sidewalk at night creates a sense of isolation. It's a public place but at that moment, Andy is all alone, which makes the mood quite desolate.
I'm not entirely sure specifically as 'Sidewalk Stories' could refer to various things. It might be a personal anecdote someone has about the sidewalk, like a memorable encounter or an observation made while walking on the sidewalk.
I'm not familiar with this particular short story, so it's difficult to name the main characters precisely. However, based on the title, the bleeding man is likely a central figure. There could also be family members or friends of the bleeding man if the story delves into his personal life. Maybe there's a antagonist, someone who caused him to be in this bleeding state, if it's that kind of story.