I'm sorry but Zach's brother is delusional if he really thinks his brother did not murder Rosalio. I think the evidence was quite clear. Furthermore, Zach looked like a crazy killer. He was very confident in the interrogation room with the police. I wouldn't be surprised if Zach's brother helped him dispose of the body!!!
Rosalio seemed like for a very sweet guy. So unfair to him and his family. He was a big guy but the murderer must have caught him by surprise.
Rosalio's mothers testimony was incredibly heart wrenching. She was very strong for doing that. It could not be easy. Also, Rosalio's best friend spoke very well in the documentary.
Poor Sadie and her children as well. I know it must be hard knowing that a human being is gone because of your children's father and your ex-boyfriend. It would be hard not to blame yourself.
I hope the murderer rots in jail and never sees the light of day. And I hope Rosalio's remains are found although I believe they are burned or buried somewhere :(