Off-duty police officer Amber Guyger shot and killed 26-year-old Botham Jean.
Dr. Teresa Sievers was found bludgeoned to death in her home on the morning of June 29, 2015.
Timothy Jones was arrested and charged for allegedly murdering his five children in August 2014.
Lindsay Partin was arrested and charged with the murder of 3-year-old Hannah Wesche.
Denise Williams was arrested for assisting in the plot to kill her husband, Jerry Michael Williams.