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Press Release

Hampton Man Sentenced to 84 Months for Distribution of Child Pornography

For Immediate Release
U.S. Attorney's Office, District of New Hampshire

            CONCORD - John William McMahon, 30, of Hampton, was sentenced on Wednesday to 84 months in federal prison for distribution of child pornography, United States Attorney Scott W. Murray announced today.

             According to court documents and statements made in court, during an ongoing undercover investigation, a member of the New Hampshire Internet Crimes Against Children (ICAC) Task Force accessed a peer-to-peer network to identify users who may be sharing images of child pornography. On various dates between December 14, 2017, and January 2, 2018, law enforcement  officers conducted single-source downloads of child pornography from a certain I.P. address. Agents identified the address used to distribute child pornography images during the undercover sessions.

            Through their investigation, agents identified McMahon as the person responsible for distributing child pornography images during the undercover sessions. In a consensual interview, the defendant admitted accessing wireless internet belonging to a neighboring apartment, and he further admitted downloading child pornography. Investigators later obtained a search warrant for McMahon’s laptop and other electronic media recovered from him. Subsequent forensic examination revealed approximately 1,410 images of suspected child pornography on McMahon’s laptop. The child pornography images and videos were sent to the National Center for Mission and Exploited Children, which confirmed that 500 still images and 6 videos were of identified child victims.

            “Crimes involving child pornography and child exploitation cause great harm to their very vulnerable young victims,” said U.S. Attorney Murray.  “In order to protect innocent children, we will continue to work closely with our law enforcement partners to identify and prosecute those who distribute child pornography.” 

            “The distribution of child pornography is a serious crime.” said David Magdycz, acting Special Agent In Charge, Homeland Security Investigations (HSI), Boston. “HSI works daily with the New Hampshire Internet Crimes Against Children Task Force and the U.S. Attorney’s Office for New Hampshire to fight the spread of child pornography and to bring justice to the victims of these crimes.”

            “The New Hampshire Internet Crimes Against Children Task Force remains committed to pursuing those who victimize our children online,” said Lieutenant John Peracchi, Commander of the NH ICAC. “There is no safe haven on the internet for those who look to exploit minors and we will continue to hunt them down.”

            This matter was investigated by Homeland Security Investigations, Boston and the New Hampshire ICAC Task Force.  The case was prosecuted by Assistant U.S. Attorney Cam Le.

            In February 2006, the Department of Justice introduced Project Safe Childhood, a nationwide initiative designed to protect children from online exploitation and abuse.  Led by the United States Attorney’s Offices, Project Safe Childhood marshals federal, state and local resources to better locate, apprehend, and prosecute individuals who exploit children via the Internet, as well as identify and rescue victims. For more information about Project Safe Childhood, please visit





Updated December 10, 2020

Project Safe Childhood
Press Release Number: 20-166