Clues that Jesse Speer could also be responsible for killing Jessica:
1) He had formerly lived in Estes Park, CO, so was familiar with the area
2) His victim in WY looks VERY similar to Jessica, and is in the same age range.
3) He posted on FB that he was leaving for an extended road trip on Sept. 28, so he was out driving around the west, whereabouts unknown, when Jessica was kidnapped.
4) Vehicle matches description of one seen following kids in Jessica's neighborhood the day before the abduction
5) There was plenty of time for him to kidnap and murder Jessica, drop off the body and backpack, and be back in Wyoming on Monday to kidnap the Cody, WY victim.
6) He is a photographer. The area where Jessica's body was found is known to be frequented by photographers.
7) WARNING - GRAPHIC - WARNING -
He likes to photograph fallen tree trunks. He also likes to have sex with 10-11 year old girls. What if it was a sick fantasy of his to photograph a girl next to a fallen, dead tree? It has been reported on HLN, and by people who saw the helicopter footage and people on Reddit who know FBI agents on the case that Jessica's body was just a torso. The head, arms and legs were removed. This might be a stretch, but, what if he literally turned her into a trunk, removed her limbs, etc. (tree metaphors)? What if he wanted to make his victim as lifeless and fallen as the trees he waxed poetic about online?
Note: He was ALSO on a "vacation" at the same time Elizabeth and Lyric were kidnapped, according to FB.