Prior to becoming an author, he had been a United States Marine, a theatrical actor and producer. In the 1950s, he produced shows at the Grant Lee theater in Fort Lee, New Jersey. From 1960 to 1970, he managed and produced shows at the Playhouse on the Mall at Bergen Mall in Paramus, New Jersey. His theatrical experience may have contributed to his understanding of the energy, escapism and action that the public wanted in a novel. He once remarked: "I equate suspense and good theater in a very similar way. I think it's all suspense and what-happens-next. From that point of view, yes, I guess, I am theatrical."