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That central florida case that left a teenage unarmed boy dead, george zimmerman, his attorney says his client will turn himself in to sanford, florida police if they ever charge him with trayvon martins death. getting conflicting reports on that case. abc news hired forensic experts to enhance video that shows george zimmerman in the hours after the martins family says a leaked dispatch recording proves that the shooter here, zimmerman, wasnt really hurt. according to those recordings, paramedi...

Supreme court does overturn it. >> the white house keeps saying we are not planning for a plan b because we believe it is constitutional and that the court will uphold that they are taking aim at republicans. the president today saying look you cant look at this as a legal argument. there is also a humane question here. what are you going to do with the millions of people who get health insurance all of a sudden wont have it anymore. republic paul ryan told abc they do have a plan. take a listen...

Santorum would need three of four. while santorum today was talking about the virtues of possibility of a brokered convention, newt gingrich is out on the campaign trail in maryland talking about heading to tampa for the rnc convention. talking about making sure there is a conservative platform, not fighting for the nomination. shep? >> shepard: steve brown live in milwaukee. steve, thanks. an epic week in the battle of the network morning shows. katie couric filling in as co-host for archrival ...