Here we go - the motion to suppress Dassey's statement.
http://wfrv.com/local/local_story_109173521.html
The part about what the investigators told him - about help - is probably not coercion, but the stuff about it being OK if he participated may be a problem, if true. Also - the 2 separate interviews may also be a problem, especially if they contradict each other, or if Dassey seems reluctant in the first, but not so in the second. And if LE kept him overnight between the interviews - lots of potential problems here.
Here's the second part of the test - from this article
http://www.postcrescent.com/apps/pbcs.dll/article?AID=/20060419/APC0101/60419045
[font=Arial, Helvetica, sans-serif]
[font=Arial, Helvetica, sans-serif]Dassey is too young, too inexperienced with police and not bright enough to make voluntary statements. [/font][/font]
This is the part about Dassey himself - not what the police did. The stuff about age, IQ, police experience, etc. is what I've explained before - the court looks at this in its decision as well.
[font=Arial, Helvetica, sans-serif]
[font=Arial, Helvetica, sans-serif]Dasseys mother allowed him to be questioned without her or an attorney present. - This part is bad for the defense, actually. Parental notification of a child being questioned is not required, but since she did know, it strengthens the prosecution's case. However, it looks like the initial interview took place at school, and so I assume that would be w/o mom's knowledge, so that could cut the other way. Hard to tell with this... [/font][/font]
But worse - is how this might go on appeal. If the judge allows the confession in, it seems like there's a strong basis for the appellate court to find that it should have been thrown out. And if that happens, in that event, Dassey is more likely to go free. Just my observer's opinion - I think the best case scenario is that the judge throws out the confession, prosecutors give Dassey a deal in exchange for Avery testimony, and Dassey serves shorter time as a juvenile. If the confession stays in, if I were Dassey's attorney, I would take it to trial and then look to get the conviction overturned.
I wish I could see the motion.