 That said, those who plan to swim laps may want to wait to avoid cramps. I'm Julie Walker. Mail carrier has been shot and killed while on the job in Chicago. U.S. Postal Service offering a $250,000 reward for tips solving the case in the death of Octavia Redmond. Eleven people are dead in northwestern China, that in the collapse of a large highway bridge. More on these stories at townhall.com.