countdown clock started ticking, su subtracting the seconds until the last space shuttle mission ever. the shuttle atlantis is set to carry up supplies to the international space station before it returns and t retires. if it does go ahead as expected shepard smith shepard smith will be anchoring coverage at eastern time on friday. a fishing boat capsized coast of off the west mexico and now survivors of the stent are telling their stories. that is next. plus, the casey anthony defense strategy began with a number of promises. >> caylee anthony died on june 16, when she -- caylee could get out of the house very easy eye left-hand did so on that day. you will hear stories about a family that is incredibly