California roll - Roger L Simon

Despite a string of successful cases, despite the fact that his work has, on occasion, garnered national attention, when the opportunity suddenly presents itself for private eye Moses Wine to become head of security at the Tulip Computer Corporation, he jumps at the chance. But then one of Tulip's young geniuses is killed, and Moses finds himself trailing a murderer from Northern California to Los Angeles, then across an ocean to the mean streets of Tokyo. Along the way, he discovers that there's more to the ins and outs of life in Silicon Valley than corporate in-fighting and bureaucratic bungling- especially when it involves international computer theft, the Japenese mafia, and the GRU.