Puyallup man admits to owning 100,000 images of child porn

TACOMA, Wash. -- A 56-year-old Puyallup man pleaded guilty Thursday in Pierce County Court to possessing more than 100,000 images of child pornography.

The Puyallup Police Department began investigating John Graff after getting a tip from the National Center for Missing and Exploited Children, according to the prosecutor's office.

The tip was originally reported by Microsoft after someone at the Redmond-based company spotted potentially illegal images on a Skydrive account registered to Graff's name.

Prosecutors say many of the images found on the account contained previously identified victims, and all were classified as child pornography. They showed young children in various stages of undress engaging in sexual activity with adults, according to prosecutors.

"Cooperation between Microsoft, the National Center for Missing and Exploited Children, the Puyallup Police and our office resulted in justice," Prosecutor Mark Lindquist said in a Thursday statement. "This is another example of how we can work together for a safer community."

Graff is scheduled to be sentenced on September 18.