Kidnappers beheaded British hostage Kenneth Bigley after twice releasing videos in which he wept and pleaded with Prime Minister Tony Blair for his life. A U.S. official said Friday there was credible information that Bigley had tried to escape with the aid of one of his captors. The attempt failed and Bigley was killed a short time later as was shown on a video of his beheading, the Washington official said on condition of anonymity. There was no word on the fate of his captor. A Western official in Baghdad refused to talk about the escape attempt report. The 62-year-old...