Maricopa County Superior Court Judge Christopher Whitten described the case as the darkest he had ever seen.
And now that he's been convicted, Christopher Robert Youngs will not see the light of day for a long time.
Youngs, 61, who had accumulated hundreds of child pornographic images of children under 5 years old and traveled throughout the midwestern United States in 2008 while planning sexual encounters with underage girls, was sentenced to 170 years of prison on Friday, according to information from the Maricopa County Attorney's Office.
Based on Youngs' Internet chats he had with underage girls, police investigators conducted a welfare check at his motel room in Tempe where they found blood smears in various locations, a computer and a flash drive with hundreds of child pornography images and videos as well as a list of names of underage children he had planned to meet for sexual activity.
Last month, a jury found Youngs guilty of 10 counts of sexual exploitation of a minor, stemming from the 2008 investigation by Tempe police.
In early December of that year, Youngs traveled from Qatar, where he worked in the oil services industry, to Washington, D.C. and then to Omaha, Neb., where he rented a box truck.
He traveled throughout the Midwest planning a spree of sexual activities with underage children before coming to Arizona.
Youngs also expressed his belief that if he were apprehended for these acts, he would likely face relatively easy treatment in the U.S. criminal justice system, according to a statement issued by the Maricopa County Attorney's Office.
In the statement, Maricopa County Attorney Bill Montgomery said, "This savage child predator made the mistake of assuming he would not face serious consequences for collecting obscene images of child pornography. As a result, he'll spend the rest of his life in prison. This sentence should serve as a clear warning to others who seek to victimize children in Arizona that we will not hesitate to mete the most severe punishment possible and I will vigorously oppose any effort to weaken our laws against child pornography."
Young also had rented a motel room in Tucson at the time he was traveling. From that motel room, police also confiscated child pornography-related material.