Seven men from Wichita, Haysville and Derby face federal prison time for child sexual exploitation offenses, according to a quarterly update from the U.S. Attorney's Office for the District of Kansas.

The update, released Sept. 9, covers cases prosecuted under Project Safe Childhood between June and August 2026. The federal initiative, launched in 2006 by the Department of Justice, targets child sexual exploitation and abuse nationwide.

The heaviest sentence went to Ronald Waltrip, 62, of Haysville. Waltrip was sentenced to 210 months, or 17 years and six months, in prison followed by a lifetime of supervised release. He pleaded guilty to one count of conspiracy to commit sexual exploitation of a child. KWCH reported that Waltrip directed a man in Australia to create child sexual abuse material and send him the images.

Gavin Onuffer, 28, also of Haysville, was sentenced to 121 months after pleading guilty to one count of receipt of child pornography.

The case began when the National Center for Missing & Exploited Children (NCMEC) received a tip in July 2024 from the messaging app Kik, the Wichita Eagle reported Aug. 19. A Wichita Police Department detective obtained a search warrant and traced the IP address to Onuffer's Haysville residence.

Police seized phones belonging to Onuffer and his wife, Addilynn Onuffer, 22, and found more than 351 files of child sexual exploitation material. Addilynn Onuffer was sentenced in May 2026 to 160 months after pleading guilty to distributing child pornography.

Adam Charles Pfeiffer, 36, of Wichita was sentenced to 70 months after pleading guilty to one count of possession of child pornography.

Three other Wichita-area men entered guilty pleas during the quarter. Zachery Leslie, 25, of Wichita pleaded guilty to distribution of child pornography. Michael Eugene Watley, 58, of Wichita pleaded guilty to possession of child pornography. Cody S. Bingham, 24, of Derby pleaded guilty to distribution of child pornography. All three await sentencing.

Colton Wiggins, 25, of Wichita was indicted on one count of distribution of child pornography. An indictment is an allegation, and all defendants are presumed innocent until proven guilty beyond a reasonable doubt in a court of law.

U.S. Attorney Ryan Kriegshauser said in an Aug. 19 statement accompanying the Onuffer sentencing that people "who take pleasure in viewing, creating, or distributing images of little children being sexual exploited are a danger to our society and belong behind bars."

Residents who suspect child sexual exploitation can file a report through NCMEC's CyberTipline at cybertipline.org or by calling 1-800-843-5678.