I've been watching this thread for a while and first want to say that my prayers are with Tyler's family. I am so sorry for your loss.
The following info might have absolute no bearing on Tyler's case but I thought it best to post it. I live in Oregon and have followed with interest the discovery of a young woman's body around May 20th. Her name was Shelby Joanne Carty, aged 25. She was initially misidentified as Shelby Weigel. Here's the background on her case:
http://www.thedalleschronicle.com/news/2010/05/news05-21-10-02.shtml
and her obituary:
http://www.thedalleschronicle.com/c...10_obits/05/obits_05-23-10_shelby_carty.shtml
I have searched high and low for more info on this death and can find nothing. There is no mention of a vehicle found nearby. This is high desert, however, and not where someone could walk. If I am correct, McKay Creek is a full 50-60 miles south of Pendleton. This hasn't officially been ruled a suicide and LE is still investigating, as far as I can tell.
Shelby was struggling with many issues at the time of her death and was pregnant with her fourth child. She grew up in foster care and seemed to struggle with addiction problems. She did have a number of friends and family who loved her. None of this, however, correlates (to me) with her body being found in a creek, by ranchers, out in the middle of Umatilla County.
I also posted this info on the Winklebleck thread as he seems to have traveled in that general vicinity during May. IMO, he is a very dangerous man. Once again, I have no idea if this might be helpful. I do wish, that LE and the news sources would update the general public (and the families!!) when there is a questionable death like these.