The Sterling man charged with destroying evidence as federal agents raided his home in December was sentenced today to 20 years in prison, followed by a lifetime period of supervised release. It was the maximum sentence permitted by law.
Sean Andrew Duncan, 22, pleaded guilty to charges of obstructing a counterterrorism investigation and receipt of child pornography.
According to court documents, Duncan altered, destroyed, mutilated, concealed, and covered up a thumb drive and memory chip with the intent to impede and obstruct an FBI terrorism investigation. He knowingly and unlawfully received images of minors engaged in sexually explicit conduct, and possessed thousands of such images including images of infants being sexually abused.