I still haven't seen this yet - waiting for it to show up on another site. So I may be off-base, but judging by articles I've read and other shows I've seen:
1) Conrad may have tried to kill himself again, but the Tylenol incident was likely just a cry for help or attention. A) He told someone he did it. B) He vomited up the Tylenol. C) Tylenol is not likely to kill you by taking too many - it CAN do serious harm to your internal organs, which COULD doom you to a slow and painful eventual demise, but one incident likely didn't do serious harm, plus he was young. So I'm on the fence there. I'm leaning toward him being less likely to harm again without someone playing with his head.
2) I'm not a fan of putting kids under the age of 20 on certain psych meds - especialy SSRI's (Celexa is one). My husband is an adult and can't do SSRI's because they do strange things to him. They don't work for everyone. That being said....while he doesn't do well on them, he never attempted to manipulate someone or drive them to suicide. I think that level of manipulation is part of Michelle's psyche, with or without psych meds.
3) I am in agreement that her "trial run" of telling friends that Conrad was dead a day before was disturbing. I am equally disturbed by her continually acting like she didn't know what happened to him, contacting his family before they knew, etc. Same with her incessant texting him after he passed. That's not being a scared kid. That's being intentional. And a bit sadistic.
4) I hadn't heard before about her obsession with the girl from Glee who had a boyfriend who killed himself (I never watched that show, and am not up on celebrity culture - doesn't really interest me). That pushed me even more toward her being a sociapath and this being intentional. After this happened, kids paid attention to her, stayed with her at her house, etc. She got sympathy.
5) I agree she needs to be in a psych ward, but a criminal one. They are different.
6) I respectfully disagree on her having to speak about this to kids. That would feed in to her need for attention, and could validate in her mind that she did the right thing.
7) I found it very telling that kids at school didn't care much for her. While I'm not a fan of bullying (I dealt with it for many years), kids can be very tuned in to others around them, and could have picked up on her controlling/manipulating ways, or other things. While I wasn't a popular kid, I did have friends, and for her to not have any real friends is telling.
8 ) Parents can also be tuned in, and the interview with Alice's mother was also telling. I don't believe her mom was necessarily concerned about a romantic relationship, but rather that Michelle was not balanced.
It's eerily similar to a case in Canada where a girl posed as a different person using stolen photos on a dating site, and hooked up with another guy. She played a lot of mind games with him, including saying she was out of the country, then coming to see him but cancelling at the last minute. The guy she was messing with had depression and battled some substance abuse issues, but had been better. She went so far as to make up accounts for family members and interact with them. One night, after she again blew him off, he went to a friend's house, and mixed alcohol with a prescription, and died. So this girl then started texting his mom, pretending to be her mom, and said that this "girl" he'd met on the dating site killed herself because she was wracked with guilt, making this guy's mother even more dispondant, saying stuff like "Now our babies can be together". Horrible. The mom panicked, and sent the cops to the house, to find a teenager who nothing like the person she posed to be online. But in this case, she couldn't be held directly responsible for him dying, because he didn't intentionally kill himself. She did get some sort of charges (I think related to impersonating someone), but she was a juvenile, and she was able to get her record cleared by participating in some court programs.
I believe Michelle pushed Conrad over the line, and she deserves what she got.