A Silver Spring man accused of secretly taking photos of interns at a D.C. office pleaded guilty Thursday to possession of child pornography.
Marc Gange, 32, faces a likely sentence range from about 8 years to 10 years based on federal sentencing guidelines, prosecutors said.
According to court papers, Gange met a man online and thought he was communicating with someone who was sexually abusing his 12-year-old daughter. It turned out to be an undercover D.C. police detective.
Gange, who worked as a program officer at the World Wildlife Fund, wrote about taking photos of interns at his workplace, including one female who left her panties in a desk drawer as part of her workout clothing.
Over a six-day period, Gange sent the detective dozens of images of adult men engaged in sexual acts with children.
Following his arrest in December 2012, officers searched his work space and home recovered approximately three videos and more than 1,000 images of child pornography from a USB drive and the defendant's computer.