Missouri man to be executed despite widespread pleas for clemency.

Michael Tisius is set to be executed by injection in Missouri for killing two jailers during a failed attempt to help an inmate escape in 2000. Some jurors who decided Tisius should get the death penalty now say they would back or wouldn't object if Missouri Gov. Mike Parson commuted the sentence to life in prison. Tisius' lawyers have urged the U.S. Supreme Court to block the execution, alleging in their appeals that a juror at a sentencing hearing was illiterate, in violation of Missouri law.