Walker was arrested by the FBI on July 12, 2018, was ordered detained by the U.S. District Court for the District of Columbia and has remained in custody since that time."
Excerpt: "According to admissions made in connection with his plea agreement, Walker was the creator and administrator of online chat groups devoted to the trading of child pornography. In addition to uploading images of children engaged in sexually explicit conduct, Walker encouraged other members of the groups to distribute child pornography, warning them that they would be removed from the groups if they did not contribute to the online community of offenders. Forensic examination of his electronic devices, pursuant to a federal search warrant executed at his residence in May 2018, uncovered hundreds of videos and images of children engaged in sexually explicit conduct.