I was thinking about Jared.
The perp asked Jared if Jared recognized him.
So, there was potential of recognition.
But why was the perp not concerned that Jared may recognize him at a later time?
Perhaps the perp was leaving the area forever to move far away?
Maybe he was going to have to kill him if he said yes? Maybe he had to kill Jacob because he was his neighbor and recognized him. Even with a mask.
I don't think whoever did this got a thrill out of murder, it was just necessary. and if Jared's attacker was just some stranger he wouldn't have asked if he recognized him. It was a member of the community who would be recognizable to kids. Hmmm, who could that be?