Sorry....I've been MIA for a while. Our homeschool starts tomorrow, and I've been trying to get everything ready.
Honestly, I think some are giving AG the credit of a mastermind when he is not. Plenty of people will disagree with me, but I don't think AG is a killer who planned this crime for a long time. I'm not even so sure he fantasized about it. My guess would be that he, in periods of calmness and rationality, is feeling very much like it was an "out of body experience." I think that there was really no plan. This was spontaneous. My guess is that he lured Madyson to....well, I don't know. Some evil deed, yes....but I think when he got her there, the rage inside took over and did more than he expected to do. I think in that instant, his sociopathic self was proud and exhilarated about what just occurred, followed quickly by fear and panic. The cover up ensued, and he hastily disposed of her sweet body. He thought LE would never suspect him. They would certainly suspect an evil stranger and he couldn't see how easily they would conclude that he was the evil stranger. These are all guesses, but I'm betting his mother babied him and he felt like a golden child. This gave him a false sense of self. I think that if he had planned this thing out, he would have lured Madyson to a previously sought out, secluded spot and committed his atrocities at a slower, more enjoyable pace. That's sickening to put in black and white.
I'm not making excuses for him or saying that he didn't know what he was doing. I think that, for the most part, you are going to hear people say AG was weird and said weird things, but lacked aggression. This is what made people feel like he was just "saying stuff." He's the kind of kid that doesn't really have an outlet for his teenage angst.... like a lot of boys his age find in sports, or some other physical activity. When he came up behind Madyson, alone in that apartment, that aggression that he's been hiding engulfed him (and her) and he was stronger and more evil than even he thought he could be.
This is graphic, but I think it's a good comparison. I knew many a teenage boy back in the day. I remember how quickly a boy's passions escalated when we were alone. How when the state of arousal increased, his hands and movements were more frantic, doing things and touching places that we'd not agreed on before the escapade. I think Madyson's murder was AG's first "make out session" with death. It excited him to a point he didn't know existed, and that sweet baby was no resistance to him taking it to a level of no return in his erotic state.
I don't feel like any of that is an excuse and I'm not saying that he couldn't control himself. I'm saying that, at that moment, he didn't want to control it. I do think he's feeling remorse, but it's not the kind of remorse for the brutal murder of precious Madyson. His remorse is for himself, his family, and wishing he'd not been caught.
These are just my opinions and hypothesis. I remember watching a documentary of a similar serial killer. He was very good at explaining how he felt before, during, and after his crimes. He was boiling with rage and anger, and actually stopped by this rural home to rob them, or something less harmful. But when he got there, he killed them....his first blood. He said it felt so good....a temporary release from the rage that he didn't even know existed. From then on, he knew he had to kill again and went on a spree, but just like meth....the subsequent murders felt good, but not as good as that first hit. It's my guess that that's why serial killers keep murdering. It's an addictive, demonic high.