Ina Cognito,
That "truth" site contains nothing but opinions from people who are still so deluded that they believe Damien, Jason and Jessie are guilty. They think that, because they constantly link to Callahan's, they are telling the truth. However, they are giving their "spin" on the material on Callahan's.
The site I provided is a well-documented discussion board whose users believe in the innocence of Damien, Jason and Jessie. Among other things, the Manhole Theory is discussed and explained there. Also, any new information that comes to light is discussed and picked apart when necessary.
IMO, the biggest difference between the two sites is that the former is static, unbending and unwilling to accept any new information. The people who formed it believe that "the juries found them guilty so they're guilty" is a valid argument. There's not a lot of discussion on that site, only pontification from someone who refuses to look at new information. Kind of like the ostrich who buries his head in the sand.
On the latter site, there is room for discussion and disagreement when respectfully discussing the facts, both old and new, in this case. I'm sure that those who still believe Damien, Jason and Jessie to be guilty (BTW, they're called "nons") will disagree with my assessment and would claim that the former site is totally unprejudiced, relying only on the "facts" in the case. However, one visit will show you that nothing could be further from the "truth!"