Evening News Online, 04.20.12

      |The judge set bail for George Zimmerman in the killing of Trayvon Martin at $150,000. At the hearing, Zimmerman addressed Martin's parents and apologized for their loss; Also, CBS News has learned that three more Secret Service members are leaving the agency over the prostitution scandal; And, Steve Hartman catches up with P. Stephen Potter, a lawyer turned hot dog slinger at the University of Nebraska stadium.