I this part of the book Johnny and ponyboy are in the park and then blue mustang circles around the park and socs surround them (bob,Randy and 3 other socs). Bob is look for a fight, Ponyboy out smart him and he attempts to drown him and then Johnny pulls out his switch blade and stabs him.
When Johnny stabs him the socs run away and bob is now dead. Johnny and Pony boy are scared because they don't want to be put in jail and get the electric char so they decide to run away and they thought to go with dally.
Johnny and Ponyboy meet up with dally in the corner of a party and tell him what happend and they ask him if he would hep them run away and he said yes because he dealt with the police so much he doesn't really care any more. But dally have them a gun a money.