Booking photo of Christopher Madill. (Source: Maricopa County Sheriff's Office)
PHOENIX (3TV/CBS 5) -
A Phoenix man was sentenced Thursday to 10 years of supervised probation in a 2015 sex exploitation case.
A Maricopa County Superior Court judge also ordered Christopher Madill to register as a sex offender.
Madill had pleaded no contest to one count of attempt to commit sexual exploitation of a minor.
Madill was arrested two years ago in early February after authorities discovered evidence of child pornography on his computer and cellphone.
Federal authorities say investigators also discovered Madill had taken non-pornographic photos of a friend's child that were posted online and used them on a foreign-based file-sharing website alongside unrelated pornographic images.
The discovery of the online photos depicting the prepubescent Arizona girl are what launched the investigation that led police to ultimately arrest him on allegations that he separately possessed child pornography.
Authorities say Madill acquired the images of the girl through her mother's online profile.
Judge Jose Padilla sentenced Christopher Madill to 10 years supervised probation. He must also register as a sex offender.