Activity in the United States Attorney's Office

Failure to Register as a Sex Offender

Kyeren Dillon Tillman, age 32, of Lander, Wyoming, was sentenced on August 8, 2023, to 13 months’ imprisonment for failure to register as a sex offender. U.S. District Court Judge Alan B. Johnson imposed the sentence which included five years of supervised release. The special assessment in this matter was remitted by the Court. According to court documents, Tillman is a convicted sex offender who had not checked in with the Wind River Sex Offender Registration and Notification Act (SORNA) office since July 2022. The case was investigated by the U.S. Marshal Service with assistance from the Wind River SORNA office, and prosecuted by Assistant U.S. Attorney Timothy W. Gist. Case No. 22-CR-00139-ABJ

Child Pornography

Nathan Lucas Heibeck, age 26, of Rawlins, Wyoming, was sentenced on August 10, 2023, to 38 months’ imprisonment for possession of child pornography. Chief U.S. District Court Judge Scott W. Skavdahl imposed the sentence which included five years of supervised release, a $100 special assessment and $48,000 in restitution.

According to court documents, the Wyoming Division of Criminal Investigation (DCI) initiated a peer-to-peer investigation of the defendant sharing child sexual abuse material (CSAM) via the BitTorrent network. A search warrant was executed on Heibeck’s residence and an analysis of the evidence seized identified over 50 videos and over 2,200 images of CSAM on the defendant’s devices. This case was prosecuted by Assistant U.S. Attorney Z. Seth Griswold. Case No. 22-CR-00144-SWS

Tyelure Schroeder, age 33, of Fort Bridger, Wyoming, was sentenced on August 11, 2023, to 120 months’ imprisonment for possession of child pornography, second or subsequent conviction. U.S. District Court Judge Alan B. Johnson imposed the sentence which included 10 years of supervised release, a $100 special assessment and $36,000 in restitution.

According to court documents, on August 9, 2022, the Wyoming Division of Criminal Investigation Internet Crimes Against Children (ICAC) Task Force, received a Cybertip from the National Center for Missing and Exploited Children (NCMEC) indicating that an individual had uploaded 42 files of apparent child pornography to their Google account. Agents were able to track the account and determine it belonged to Schroeder and confirmed the account contained child pornography. Pursuant to a search warrant, agents later seized a laptop belonging to the defendant which contained approximately 1,000 images and numerous videos of child pornography. This case was prosecuted by Assistant U.S. Attorney Z. Seth Griswold. Case No. 23-CR-00006