From what I have seen, the Police basically direct him to say exactly what they want based on their knowledge of the murder. When he doesn't say what they want they just become more and more blunt and obvious about what they want him to say. Feeding a mentally impaired kid a load of information about a murder they say he has committed when he is all alone with aggressive police officers is bad. Its been proven time and again that people will say and admit to things they haven't done if they are scared enough. Either he is a genius at misleading the police or he was a very scared boy who the police manipulated to get what they wanted. He even says plenty of stuff that simply isn't true and doesn't make sense in order to give the police what he thinks they want.
The way they made him write his confession should be a red flag for you as well. I don't know if he is guilty but I sure as hell know that the way the police dealt with him was ridiculous.
Brendan volunteers specific information that only both he and the killer could only know, like how she was shot in the head - this was later revealed to be correct, with the forensic examination of the skull fragments, showing damage consistent with a gun shot.
The police have a gap in their evidence - specifically, why is Halbach's blood in the back of her Rav 4 - but her remains are in the burn put? Brendan fills that gap in his statement by explaining how Avery initially wanted to dispose of her body at the Quarry by driving her down there and throwing her in, he changes his mind at the last moment and burns her instead (removing her body from the Rav 4)
Lastly, please provide evidence showing how the police officers were aggressive or unreasonable with him within the context; a suspect in the most serious offence you can commit, when he was known to be there and known to be there at the time of the disappearance, I maintain that they were quite decent with him, considering the circumstances.
I urge you to read his full written statements, because there's a ton of information in there that he volunteers freely on his own accord;
https://static1.squarespace.com/sta.../1452480329562/Transcript+-+March+1,+2006.pdf
https://static1.squarespace.com/sta...76bfb/1452792626497/dassey_okelly_5_12_06.pdf
https://static1.squarespace.com/sta...dda3ba5af/1452473032041/13May06Transcript.pdf
They are welcome to try and get information out of him but they fed him all the information that they got from him. Thats not getting information, thats just patting yourself on the back for persuading the suspect to parrot back what you have told them.
The onus is on you, to demonstrate what they fed him - I see no evidence that they fed him information, they encouraged him to talk (as any detective will do) when someone is being difficult, but to say they actually fed him evidence that he regurgitated back - and then call it a confession, is false and didn't happen, again - you need to demonstrate this and provide evidence that it happened, because as far as I've concerned I've seen none.
The one that nobody has answered in this entire thread or anywhere - is why did Dassey confess to Raping Halbach? There's no evidence it happened - why so easily admit to it?
Apply occam's razor;
I maintain, he couldn't deal with it - he couldn't handle the gravity of what he'd done - when under pressure from a special agent and a detective, he caved in - it's a far more likely and reasonable explanation.
I don't think anyone has suggested that the police planned the murder and set him up. What is suspect is the way the police handled everything post murder.
Well, people claim that the police had a motive - I agree that they did, therefore it follows that if evidence was planted - then the police themselves planted it or were involved in planting it, which was indeed an angle used by Avery's defence team in his trial.
If police planted all the evidence, then they're actively setting him up - which means that they were also involved in murdering, or arranging in the murder of Halbach - OR they by sheer luck, they came across her body after the fact and made it look like Avery - which is easy to prove wrong, because her complete body was burned in Avery's burn pit, right outside his door, her remains were not transported there.
Have fun explaining that one away...
This isn't an argument for Averys guilt though is it. The police can't say "we're pretty sure he did it; if he didn't then who was it" and then the defence is expected to provide an alternative.
It's an argument against the theory that the police murdered, or arranged the murder of Halbach via a third party - why would they pick her? Why would they embark on the most complicated, difficult and risky method of framing Steven Avery and Brendan Dassey, when there are potentially far simpler and easier methods of getting out of paying the Avery suit.