The search warrant executed by the Federal Bureau of Investigation at MedCure Inc headquarters here on November 1 is sealed, and the bureau and the company declined to comment on the nature of the FBI investigation. But people familiar with the matter said the inquiry concerns the manner in which MedCure distributes body parts acquired from its donors. MedCure is among the largest brokers of cadavers and body parts in the United States. From 2011 through 2015, documents obtained under public-record laws show, the company received more than 11,000 donated bodies and distributed more than 51,000 body parts to medical...