Trial starts for O.C. ex-convict who killed 3

/*Quang Van Quan*/ apparently knew the father from a previous stint in prison.

Prosecutors said Quan tied up and stabbed Phuong Le, Ngoc Lam and their son Tommy Lam May 2006.

The couple's other child, an eleven-month-old girl, was left alone with the bodies until they were all found two days later.

If convicted, Quan faces life in prison without parole.

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