From my election integrity/deep politics wiki:

Ray Lemme was a Florida investigator who died suspiciously after investigating Clint Curtis's allegations concerning Yang Enterprises and Tom Feeney. After serving in the Air Force in Vietnam, he became an investigator that helped oversee several state agencies over the course of his career. He worked in the Comptroller's Office and Department of Health and Rehabilitative Services (HRS) during the 1980s and 90s. Afterwards, Lemme came to work as an investigator in the Florida Department of Transportation's Inspector General office.

While there, Clint Curtis and Mavis Georgalis blew the whistle to him about illegal activities at Yang. Initially dismissive of the allegations, Lemme had a change of heart and investigated them outside of the official purview of his bosses. Lemme told Curtis in mid-June of 2003 that he had cracked the case and would break the story soon. A couple weeks later, he was found dead in a Valdosta GA motel room. His death was ruled a suicide by the Valdosta Police Department, but a closer look reveals a shoddy investigation that potentially covered up murder. Most egregiously, Lemme had severe bruising on his neck indicative of assault, which the VPD left out of their report and hid by pretending their crime scene photographs didn't exist.

[Article body follows]
Ray Lemme was investigating issues such as contract fraud, Chinese espionage, election rigging, and potentially even human trafficking. The company he investigated, Yang Enterprises, was represented by Tom Feeney, a close confidant of the Bush family. Lemme told Curtis that he had tracked the corruption "all the way to the top" a couple weeks before his alleged suicide.