John Sgromolo works for the $20$th$-$largest accounting firm in the United States, but he's not an

accountant. He works with hard drives and various other types of computer equipment strewn across

several desks. Sgromolo, spends his days culling together bits and pieces of data people think they

have erased from existence months, even years, before. His findings have been used in cyber$-$crime

cases and murder investigations. Sgromolo engages in: