According to a local station here in Dallas, that's all Robles did. He never went on the bus to assist in getting people off, as first reports indicated. Instead, passersby got anybody off who got off the bus.
This lack of action by Robles forms the basis for 23 charges against him.
Is there some law requiring the driver to go back on the bus? If not, how can he be charged based upon him not going back???
Gotta be more to this.