NOTE: This action has expired because the Texas Board of Pardons and Paroles decided not to recommend a reprieve for Skinner. To sign a petition urging Gov. Rick Perry to grant a pardon, click here.

Hank Skinner is scheduled to be executed in Texas on March 24 for three murders he maintains he didn't commit. Several key pieces of biological evidence from the crime scene have not been tested. DNA testing could prove Skinner's innocence or confirm his guilt, but prosecutors are opposing Skinner's appeals and seeking to execute him.

Send a letter below to the Texas Board of Pardons and Paroles urging them to grant Skinner's clemency petition so DNA testing can be conducted.

Photo Credit: Texas Tribune