The only physician known to have been convicted of murder in the US for prescribing opiates lost her appeal on December 14, 2018. The Court of Appeals upheld the conviction of former doctor Lisa Tseng. In 2016, a Los Angeles jury found Tseng guilty of three counts of second-degree murder, 19 counts of unlawfully prescribing controlled substances among other charges. She was sentenced to 30 years to life in state prison. The Marcarian Law Firm represented one of the pharmacies that had filled prescriptions issued by Tseng.