In a corrupt walled-in society like Blackhill, nothing really ever changes. Gangs, poverty, drugs, and murder are the things people are used to by now. Even Misha, who is probably the only one there trying to get out legitimately. But even he can't avoid the pressure of becoming a gang member, much less when that pressure is actually just another gun on his head.
For as long as he has lived, which isn't much, Misha has tried his best to avoid contact with the outside world. Mainly because he believes the corrupt ways of his citybox will taint him into becoming yet another monster. He soon realizes his mistake.