holgerson had engaged in graphic sexual chat, even sending a picture of himself with mickey mouse. and it got more explicit from there. holgerson has pled not guilty. he, too, told police he was just looking out for the child. >> i was going to see if he was really doing this and i felt it was wrong and i was going to actually call it in once i left here. >> reporter: in a statement said, we have extensive measures in place, including preemployment and ongoing criminal background checks and computer monitoring and fire walls. the numbers reported by cnn represent one-hundredth of one percent of the 300,000 people we have employed during this time period. we continue to work closely with law enforcement and organizations like the national