A suspect accused in a massive arson-for-profit scheme that also entangled the father of French train hero Spencer Stone has pleaded guilty in a move that will net him 30 years in prison. Jamal Mustafa Shehadeh, 58, agreed to the plea in an unusual Saturday night court hearing before U.S. District Judge Morrison C. England Jr., who then sentenced him, court filings show. “He decided to plead guilty instead of going to trial,” Shehadeh’s assistant federal defender, Matthew Bockman, said Monday.