Rowland Heights doctor charged with three counts of murder appears in court

A Rowland Heights doctor accused of murdering three young men through abuse of her prescription pad pleaded not guilty Friday.
Hsiu-Ying “Lisa” Tseng, 42, of Walnut entered her plea in Los Angeles Superior Court, court officials said. She was ordered to appear in court again Oct. 11 for a pre-trial hearing.
She’s accused of second degree murder in connection with the deaths of Vu Nguyen, 29, of Lake Forest, who died March 2, 2009; Steven Ogle, 25, of Palm Desert, who died April 9, 2009; and Joseph Rovero III, 21, of San Ramon, who died Dec. 18, 2009.
Through a Rowland Heights medical clinic she operated with her husband, Advanced Care AAA Medical, Tseng is accused of supplying the young men with powerful medications such as oxycodone, methadone and xanax, without a valid medical reason.
Though she’s charged with three deaths, testimony heard at her preliminary hearing in June indicated that 12 of her patients have died from drug overdoses. She has settled in civil court with families of five of the young men.
If convicted as charged, Tseng could face a sentence of 45 years to life in state prison.
According to county booking records, Tseng remained jailed in lieu of $3 million at the Century Regional Detention Center in Lynwood pending trial.
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