By Stan Guthrie
After deliberating for a total of just 11 hours, the jury in the Casey Anthony murder trial returned its verdict: Not guilty of killing or abusing her 2-year-old daughter, Caylee, three years ago. Observers in the Orange County courtroom and across around the nation were dumbfounded, letting out a collective gasp. The case reminded many of the notorious acquittal of O.J. Simpson in 1995.