Answer:
Ponyboy believes that other Greasers will end up like Dally because of how they look at life, and how they take it: violent and desperate. ... Ponyboy did this after Dally was shot, because he was exhausted, in shock, and had a concussion.
Explanation:
Well he says his name is "nobody" which when the other giants come and ask who did this in return he says "nobody" which gives Odysseus the perfect escape plan.