rita cosby, what more are we learning about sigg?> well, when you talk about skinning rats, apparently some of this he was testing in school. remember, he was in these mortician classes. but people are saying he was fascinated with death. testing how living beings would be affected by decomposition, dirt on them. also this knife collection that you talk about, nancy, too. he had switch blades. he even played knife games with friends and was fascinated by dark clothing, this dark behavior. the other thing i want to point out, this pornography that you talk about at the age 15. we were about this the other day. remember, he dropped out of high school and also, vocational school around that time. we don't know why. was he push out? was there some crime? we don't know. he is a juvenile. there may be something tied to this pornography at that same time. >> joining me right now is jacqueline miller. this is sigg's classmate at arapahoe community college. thank you for being with us, miss miller. >> thank you for having me. >> jacqueline, h

also with us tonight, investigative journalist rita cosby. rita, he tried this on about that we know of three or four people already. so if you look at those m.o.s, modus operandi, method of operation. if you don't know a horse, rita, look at his track record. there he was at ketner lake -- let's see a shot of ketner lake, liz -- where several of his other alleged victims were. one was a boy he tried to drag over a fence. there was a female jogger and maybe another. he approaches them, typically may use a chemical-soaked rag to put over their face, and then that's it. the rest is all history. it's all over. what do we know, rita? >> the good things is you pointed out that jogger this was the case in may that jim was talking about actually saw him go by. he had a baseball cap and glasses on, but she was able to give cops a good description. the other thing we know is this guy, this monster, this mortician wanna-be, austin reed sigg, 17 years old has indeed confessed to police. apparently he first confessed to his mother. his mother got suspicio