The reward for the driver who gunned down 7-year-old is now $100,000

    Photo: ABC13 Houston   The hunt for the killer of 7-year-old Jazmine Barnes is now at $100,000. Texas police are hoping that they can track the murderer with the description that Barnes' siblings and mother provided.     The driver opened fire on the family's car when the second-grader at Monahan Elementary School was still in her