I just finished reading this thread. I recall when this happened it was such a tragedy. I'll add my 2 cents worth to hopefully restart the discussion.
Below is a Google map of the pertinent locations involved in the crime, as well as I could interpret them from various news stories.
A - location of Angie's school
B - location of her bus stop
C - approximate location of closest intersection where she was found
http://goo.gl/maps/ICFsQ
Can anyone clarify whether LE thought she had been at Bush Wildlife Reserve for the entire time since she went missing or had she been left there recently?
I checked Weather Underground for the weather in the area that time. It had been relatively warm on the day she was missing and several days after w/ high temps ranging from low 50's to 65, foggy and rainy (typical St.L weather). Around Nov. 25th, the weather turned cold and snowy, with temps going below freezing at night, still foggy.
At that time of year, there probably wouldn't have been many people out there hiking and enjoying scenery, more likely just hunters, like those who found her. This is a somewhat isolated area, as others have said, especially back in 1993. Its difficult to imagine a killer from out of town would have known about it unless they had been in the area a while scouting around. It is, however, fairly accessible to a major highway exit, I-64 with I-70 nearby. The location is about 20 miles from Angie's street.
My ideas about the killer:
The fact that her clothes and belongings were there with her, neatly folded, IMO indicates someone who was there for a while and spent time with her. This person obviously felt secure and not fearful of being interrupted. It indicates they may have been experienced, having done this before.
Probably a white male, youngish, at least under the age of 40
Active fantasy life and heavily engaged in sadistic and child *advertiser censored*
Unlikely they had been caught/arrested before as they seemed unconcerned about leaving evidence behind (DNA testing wasn't as commonly used back then).
Probably lived alone and had a lot of free time or a job that had a lot of freedom to come and go, considering the amount of time they kept her captive. If they did have a job, they may have missed a lot of work around that time.
They stalked her and possibly groomed her for some time. According to some of the articles about her, Angie was known to hang out at the church parking lot down the street from her home and at a couple of nearby parks, prime grounds for someone scouting a victim.
They were one of the worst kind of killers - a sexual sadist who had no concern for their victim. Narcissistic and proud of their skills and ability to evade arrest. They're a highly functioning sociopath with an ability to control their emotions and actions, very confident, even arrogant.
These types usually work alone and don't share information about their experiences with others. They're also among the most difficult killers to capture.
IMHO, it had to be someone from the area, or at least someone who had been living in the area for quite a while. The planning and execution of this horrible crime took too long for it to have been done by a traveling serial killer, but I could be wrong about that.
They may have been undetected before because they hadn't gone so far as to kill someone or at least hadn't killed a child. They probably have killed again.
Does anyone know if the DNA evidence has been run through CODIS recently? Its possible they could have eventually been caught and are in prison. If not, its possible they have died since then.
This one is as baffling as the Amy Mijalevec case. Someone who plans carefully, takes a child in broad daylight, keeps them for a period of time then leaves them in an isolated area.
MOO
ETA to add a sweet, sad article about the case
http://www.stltoday.com/suburban-journals/article_5a645fe8-2d80-5537-894c-b643e0d4f4ee.html