A prisoner who became publicly known for chronicling his life on death row was executed Wednesday in Florida. William Van Poyck was convicted for the 1987 killing of a prison guard during a botched attempt to free another prisoner. Van Poyck has blamed the murder on another man who was later beaten to death by prison guards. While in prison, Van Poyck wrote three books and a series of blog posts about his life behind bars. His last-minute bid for a stay of execution was denied by the Supreme Court.