A Stanford University graduate student committed suicide by ingesting sleeping pills before getting into the trunk of her car, which was found at a North Bay community college, Santa Rosa police have concluded in ruling out foul play.Mengyao "May" Zhou, 23, took her own life Jan. 20, 2007, said police Sgt. Paul Henry. He cited interviews with those who knew her, an apparent suicide note she e-mailed to her younger sister and credit-card records and a store surveillance video showing Zhou buying sleeping pills.
"No evidence of foul play has been discovered during this investigation," Henry said in a statement. "All evidence discovered during this investigation supports the conclusion that May Zhou died as a result of suicide."
Three empty bottles of sleeping pills were found in the trunk of Zhou's car at Santa Rosa Junior College, along with her body, police said.
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