A Harford County man, who shares a daughter with Rachel Morin, a mother of five who was brutally murdered by an illegal immigrant in 2023, was arrested on possession of child pornography charges.

Matthew McMahon, 51, is being held in jail without bond after troopers with the Maryland State Police allegedly traced multiple videos and images to his computer.

McMahon was outspoken after Morin was found raped and murdered along the Ma & Pa Trail. Victor Martinez-Hernandez, a native of El Salvador, was arrested nearly a year later in Oklahoma.

He was convicted of murder and was sentenced to life without the possibility of parole.

Investigation into child pornography possession

Senior troopers with the Maryland State Police conducted an online investigation to detect potential c

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