Vidal Herrera’s portable autopsy business in Southern California is so successful he has plans to franchise it. Mr. Herrera’s company (1-800-AUTOPSY) does it less expensively than local medical examiners. He hopes to sell 72 autopsy franchises in the United States and 16 abroad. He says there are 2,300 applicants. "Because of the baby boomers, there’s going to be a large number of deaths," he said. "People know the need is there."