What additional problem did the three brothers face after Pony's return?What happened to Pony when he returned?

The Curtis brothers' biggest worry after Ponyboy returns home is the possibility that he and Sodapop will be removed from Darry's custodial care. Since charges may be pending against Pony in the death of Bob, there is the possibility that Pony may be sent to a juvenile facility. Authorities may consider that Darry is not a proper adult supervisor of his two underage brothers, and the family may be broken up. This is actually one of Darry's concerns before Bob is killed; he warns Pony about coming home late, because he can't call the police for fear of this.