What three men does Socrates determine to be detrimental to the neighborhood in the novel, Always Outnumbered, Always Outgunned?

Socrates singles out three young men living in his neighborhood that are harming the community; Petis by robbing and stabbing people, Philip by being a gang leader, and Ponzelle by lighting fires. Though Socrates believes his own crimes were worse than theirs, he still knows to keep his community safe he will need to deal with these criminals, and he does so.