Overview
- Montgomery County Circuit Judge Rachel McGuckian imposed a 25-year term, below the 30-year maximum, citing the killing’s brutality, a breach of trust, and a staged crime scene, while noting Landeros had no prior record.
- The sentence includes credit for roughly three years already served since his 2022 arrest.
- A jury found Landeros guilty of second-degree murder in October 2025 after less than a day of deliberations.
- Prosecutors said DNA under Sue Marcum’s fingernails and on a tequila bottle used in the assault tied Landeros to the attack.
- Landeros, formerly Marcum’s Spanish and yoga instructor with personal and financial ties to her, fled to Mexico before his December 2022 arrest and later extradition.