But the work itself was tedious and exhausting. The master map that guided us on our paper journey into Marston’s past was his 1997 tax return. It listed most of his business holdings (the number of Schedule C’s and E’s was astounding), and I immediately began drafting a supplemental request for production, using these as a guide. His form 1040 showed an adjusted gross income of over two million dollars for 1997, and the sheer variety of his holdings was staggering. Real estate, manufacturing, banking, timber. And despite the moribund oil business, he had recently struck a significant gas field in south Texas. What fascinated me was the variety of small enterprises in which he participated. Several fast-food franchises around town. A steam laundry. A Christas tree farm. Hunting camps. Apartment buildings in the black sections of town. We even found a scrawled note listing income he had realized from arranging private adoptions over a period of twenty-five years.

In short, Leo Marston appeared to administer an empire of great and small dominions, all entirely aboveboard. On closer examination, however, a dark underside began to show itself. One of the boxes Leo had planned to burn contained records of a collection agency wholly owned by him. Listed as an officer of that company was one Raymond Aucoin Presley. This was the first tangible proof of a connection between Marston and Presley. We found copies of letters sent to hundreds of local citizens, demanding payment of debts on everything from materials bought through Marston companies to personal loans made by the judge. It wasn’t hard to guess what function Presley served when these letters failed to bring payment of the outstanding balances. Most important, he was operating in this capacity during 1968, while serving as a Natchez police officer and in the month Del Payton was murdered. Closer inspection of Marston’s other companies revealed that Presley was listed as a paid “security consultant” to several of them.

Another of the “burn boxes” contained records of land transfers made to Marston or his business partners. I noted the disturbing frequency with which the parcels of land had been sold by recent widows whose estates Marston’s firm had handled. Many other sellers could be cross-indexed to debtors listed in the “collection-agency” box. It was a letter from this box that gave me my first glimmer of a possible motive for Payton’s murder.