Multiple cases in Texas involving DNA evidence and death penalty convictions have sparked legal battles and Supreme Court interventions. In one case, Ruben Gutierrez, scheduled for execution, seeks DNA testing to challenge his sentence for the 1998 murder of Escolastica Harrison. Similarly, Jeremy C. Brock is on trial for the 1988 murder of his grandmother, with DNA evidence being a focal point. Legal teams in these cases argue over the significance and admissibility of DNA evidence, raising questions about the application of advanced forensic technology in past convictions. The Supreme Court's involvement in these cases highlights the complexities and implications of DNA testing in the criminal justice system, impacting the outcomes of death penalty sentences based on evolving scientific methods and legal interpretations.