Anyway, they met up, walked down the path smoking a joint (hence why it was reported that j had fresh marijuana in her system that day when they did the autopsy), were still arguing like they had been in school earlier that day, it became heated, lm snapped and murdered j behind that wall in a rage and cannabis-induced psychotic episode.
The rest of the post is spot on, I'll pick up on this bit. Jodi had found out she was getting 2/3 timed, that is why they were arguing, during the day. After school, this continues by text, these texts deleted, because Jodi did not want her mother finding out what Luke was upto, Jodi desperate to get ungrounded, so she can go meet Luke and continue to question him about these other girls. She does her chores as instructed, and then she is straight out the door, makes her way to the entrance, Luke is already there waiting, she sees Luke and starts on him again about these girls, this gesture by Luke, the body language the sympathy arms spread "what girls, i love you" Come on lets go to the woods for a smoke and talk about it. They never walked down the path, they went though the break in the wall at the crossroads with Lady path, though to the field at the opposite side and walked towards the V that way. The rest is history.
Luke came armed and prepared, this was premeditated. He had already displayed his dark mind, in jotters, admitted to his friends, about murdering in the woods while stoned. These fantasies he was having became a reality, this was his opportunity. If he was never caught, he would have killed again. A true narcissist. He got the opportunity to go back to his kill, between 6:15/7:30 that evening. A part of his timeline unaccounted for. It explains the wounds inflicted post-mortem, why he did this, these farther wounds, only his sick mind knows, he was again seen later that evening, walking past a neighbour's house, when his mother claimed he was home, where was going? As soon as he got the phone call to meet with the search team, he was already, prepped and ready to go, and like a whippet, he was up that path in minutes, he could not wait to direct the family to his kill, he had to see their faces, a true narcissist.