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STE. GENEVIEVE COUNTY, MO (KTVI) – A former sheriff’s deputy facing state and federal sex abuse charges was found dead in his jail Saturday morning at Ste. Genevieve County Jail, the St. Louis Post-Dispatch reported.

The exact circumstances surrounding 52-year-old Marty Rainey’s death were not immediately disclosed.

The Missouri State Highway Patrol is investigating Rainey’s death, according to his attorney.

Rainey, a Sullivan resident, was indicted March 2 in federal court on four felony counts of deprivation of rights under the color of law and one felony count of enticement of a minor under the age of 18 to engage in commercial sex acts.

Federal prosecutors said the civil rights violations occurred between June 2010 to March 2012 while Rainey served as an officer with the Gasconade County Sheriff’s Office and was also employed by the Hermann and Rosebud police departments. The crimes involved “acts of aggravated sexual abuse” against four women and the enticement of a minor to engage in prostitution.

The state charges, two counts each of sexual assault and acceding to corruption by a public servant as well as statutory rape and use of a child in a sexual performance, were filed against Rainey in January 2015.

Rainey resigned from the sheriff’s office in November 2012, one month after being investigated for inappropriate behavior following a complaint from a mental health counselor. The sheriff’s office contacted state police and asked them to further investigate the criminal aspects of that initial complaint.

After Rainey left the Gasconade County Sheriff’s Office, a co-worker discovered a thumb drive belonging to Rainey, which contained photos and videos of sex acts. This prompted a raid of Rainey’s home in August 2014. Investigators seized multiple computers, cameras, flash drives, a hard drive, a cellphone, and other storage devices. Neither prosecutors nor investigators have said if they discovered any illicit material on those items.

According to an affidavit, Rainey would use his position and authority to take advantage of women. In one instance, Rainey detained a woman on suspicion of DWI in October 2011. Rainey learned the woman was exotic dancer and then made to strip so he could take a photo of genitals. He later went to the woman’s home and took another photo of her genitals.

In another case, Rainey began calling and sending texts of a sexual nature to a mentally handicapped woman. That woman’s mother had been the victim of a crime, and Rainey allegedly promised to help, but only if the daughter would send him nude photos. Rainey would later meet the woman for sex on separate occasions.