Missouri officials are moving forward with the execution of 42-year-old Michael Tisius today, despite pleas from human rights groups — and even former jurors in his case — to spare his life. The Supreme Court on Monday denied a stay, while Republican Governor Mike Parson refused to grant Tisius clemency. Tisius was convicted of killing two jail guards when he was 19 years old. Six jurors, including two alternates, recently came out in support of commuting Tisius’s sentence to life in prison. Tisius’s clemency petition described the horrific violence and neglect he endured as a child, which had detrimental impacts on his neurological and mental health. In 2000, Tisius was sent to jail over a probation violation, where his cellmate convinced Tisius to help him escape, leading to the death of two guards.