A doctor in Southern California has been charged with murder in connection with three prescription drug overdose deaths.

Dr. Hsiu-Ying "Lisa" Tseng, 42, was arrested after undercover agents posed as patients with pain problems.

On Monday night, HLN's Dr. Drew was joined by two mothers who allege Dr. Tseng played a role in the deaths of their teen sons.

Watch: Moms lose teen sons to overdose

Dr. Tseng's attorney said in a statement Monday, "Charging a physician with murder is highly unusual; we ask that judgment is reserved until Dr. Tseng has had her day in court."

Tseng is charged with second-degree murder and 21 other felony counts. If convicted of all charges, she faces a maximum sentence of 45 years to life in prison.

Do you think the state can prove that Dr. Tseng allegedly knew there was no legitimate need for the drugs, but prescribed them anyway?

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