Shreveport Sex Offender Admits Skipping Registry In Muskogee Federal Case

A Shreveport man is now headed toward federal sentencing after pleading guilty this week in Muskogee to failing to keep his sex offender registration up to date. Prosecutors say Robert Thomas Richardson admitted he did not update required information as he moved across jurisdictions, a violation that can trigger serious penalties under the national sex offender registration law.

Federal plea in Muskogee

According to the Claremore Daily Progress, which cited an announcement from the U.S. Attorney’s Office for the Eastern District of Oklahoma, Richardson, 43, entered his guilty plea in federal court in Muskogee. The indictment alleges he failed to register and update his registration between Sept. 18, 2024, and Jan. 17, 2026, a stretch of time that put him squarely in the sights of federal sex offender tracking laws.

Criminal history in Rogers County

Public records show that Richardson was convicted in Rogers County of rape by instrumentation on Sept. 30, 2004, and of rape in the second degree on Dec. 21, 2010. Those records list him as a registrant with lifetime registration obligations, according to OffenderRadar.

Indictment details

The federal indictment accuses Richardson of knowingly failing to comply with the Sex Offender Registration and Notification Act by not updating his registration while moving between jurisdictions. The U.S. Attorney’s Office announced the plea, as relayed by the Claremore Daily Progress, underscoring that the case is being handled as a straight SORNA violation.

Federal penalties

Under federal law, a knowing failure to register or to update a registration under SORNA can bring fines and up to 10 years in prison, with even longer potential terms if the violation occurs in connection with a violent federal offense. See 18 U.S.C. § 2250 as published by the Cornell Law School and the U.S. Department of Justice citizen guide for more detail on how the statute works.

Enforcement in eastern Oklahoma

The U.S. Attorney’s Office in Muskogee has been steadily bringing SORNA cases in the Eastern District, announcing a string of guilty pleas and sentencings for sex offender registration violations across the region. Recent examples include a March 5, 2026 sentencing of a Tahlequah registrant for failing to register and an April 16, 2026 sentencing in the Jimcy McGirt SORNA matter, both highlighted in press releases from the U.S. Attorney's Office for the Eastern District of Oklahoma and the U.S. Attorney's Office for the Eastern District of Oklahoma. Richardson’s case lands in the middle of that ongoing enforcement push.

What’s next

With the guilty plea now on the record, a federal judge will set Richardson’s sentencing date. At that hearing, the court will weigh the federal sentencing guidelines, his prior record, and the details in the case file before deciding on any prison term, supervised release, and fines allowed under the applicable statutes.