A registered sex offender is facing new federal pornography charges. 47 year old Kris Matthew Martinson was convicted of exposing himself to a 7 year old boy in 2010. After serving probation he was living in Winnsboro, Texas and was arrested in August 24th for allegedly using a cloud-based storage service, internet accessible devices and an app to transport child pornography. June 9. He was indicted last week in Texarkana federal court.