A 71-year-old Tulsa man was sentenced to 78 months in prison after investigators say he used public library computers more than 60 times to upload child sexual abuse material to his Google account, building a cache that eventually surpassed 11,000 images. Charles Barranco was convicted of possessing child pornography, and a federal judge ordered five years of supervised release to follow his prison term.
According to KOKH, Barranco used the Tulsa City-County Library public internet system more than 60 times to upload the material, even though court documents showed he also had his own personal internet service at home. The case began after Google sent a CyberTip identifying uploads of suspected child sexual abuse material linked to his account, and investigators determined Barranco was associated with multiple CyberTips before the investigation closed in on him.
Search Warrants and a Growing Evidence Pile
Tulsa Police Department investigators executed search warrants at Barranco's Tulsa home in September 2025. What they found, per the same KOKH report, included more than 11,000 images of child sexual abuse material, with more than 1,500 additional images discovered on top of that total. The material depicted exploitation and abuse of very young children, including infants.
Christopher J. Nassar said Barranco repeatedly sought material involving the exploitation of children and used a public library to do so. He said Barranco's actions were predatory and inflicted real harm on vulnerable children, adding that the case reflected a commitment to protecting children and holding offenders accountable, the station's report notes.
A Statewide Surge in Tips
Barranco's case lands amid a sharp rise in reports flowing into Oklahoma's child-exploitation investigators. The Oklahoma State Bureau of Investigation said its Internet Crimes Against Children Unit receives around 1,000 tips each month, according to News On 6. By the end of July, the agency had logged about 8,000 cyber tips, already more than it had received by the same point in 2024, when the full-year total came in close to 10,000.
The national picture tells a similar story. The National Center for Missing & Exploited Children says it identified and escalated more than 53,000 urgent CyberTipline reports or reports involving a child in imminent danger in 2025, and reports of online enticement rose 158% year over year while reports of child sex trafficking climbed 323%. The organization also reported that electronic service providers' tips contained 61.8 million images, videos and other files tied to child sexual exploitation incidents in 2025.
Public Library Terminals Keep Turning Up in Similar Cases
In Pennsylvania, a 51-year-old Scranton man was sentenced to 15 to 30 years in prison after library staff documented more than 40 searches for sexually explicit images and videos of young children on a public computer, according to The Times-Tribune; John Dudkiewicz had pleaded guilty to 40 felony counts of possessing child sexual abuse material in that case.
In Utah, an IP address leased to the Salt Lake City Public Library was observed distributing files of child sexual abuse material over a peer-to-peer network, ABC4 reported. That investigation led to the arrest of Adrian Mathias Perea, 55, who faced 10 counts of sexual exploitation of a minor, and a search warrant on his property turned up multiple CSAM files along with a peer-to-peer application and its folder structure.
Separately, U.S. Immigration and Customs Enforcement said a registered sex offender from Orange County was arrested after witnesses allegedly observed him viewing child pornography on a public-library computer, a claim the agency's own release describes as an allegation. As with any criminal complaint, an indictment or complaint is merely an allegation, and each defendant is presumed innocent unless and until proven guilty beyond a reasonable doubt in court, ICE has noted in describing its investigations.
For Barranco, that process has concluded. He was convicted of possessing child pornography and sentenced to 78 months in prison followed by five years of supervised release, closing out a case that investigators say was built on a public-internet trail stretching back more than 60 separate library sessions.
