From the LA Times:

The teen-age mastermind of one of Orange County's most unsettling murders was sentenced Monday to life in prison without the possibility of parole for the slaying of a 17-year-old honors student.

Robert Chan, 19, a onetime high school valedictorian candidate, sat impassively as the judge handed down the sentence for the 1992 New Year's Eve killing of Stuart A. Tay of Orange.

Chan was one of five Orange County teen-agers convicted of beating Tay with baseball bats and a sledgehammer, pouring rubbing alcohol down his throat and leaving him to die, bound and gagged, in a shallow back-yard grave in Buena Park.

...

Chan and the other boys lured Tay to a Buena Park garage on New Year's Eve, 1992, by telling him he could buy a gun to use in the robbery. When Tay went to examine the weapon, he was attacked.

Prosecutors alleged that Tay was beaten for 20 minutes during the rehearsed attack. He begged for his life before the alcohol was poured down his throat and he was gagged, prosecutors said.

...

Chan denied masterminding the murder, as the four other defendants contended. A jury deliberated less than three hours before convicting him of first-degree murder May 3.

Two other defendants, Charles Choe, 18, of Fullerton, and Mun Bong Kang, 19 of Fullerton, pleaded guilty to first-degree murder. The other two defendants, Abraham Acosta, 17, of Buena Park, and Kirn Young Kim, 18, of Fullerton, were convicted of first-degree murder July 1 in a separate trial and are awaiting sentencing.

Cite: Matt Lait, Teen Mastermind in Tay Murder Gets Life Prison Term, L.A. Times, Aug. 9, 1994, at A1, column 5.