The document introduces a number of alternative suspects with possible motive and a clearer connection (than RA had) to Libby and Abby, like H and W. H posted photos on Facebook that invoked the crime scene and potential symbolism present at the crime scene, even though this information was not publicly available. He was also interviewed by law enforcement early on as a result of multiple tips received about him. His partner, AH, was also interviewed by LE and offered some interesting information about H and W’s relationship and their interest in "Asatru," which H also mentioned in his interview with LE (page 83 of the doc, if you're interested).
IMO, the introduction of these other suspects casts doubt -- FOR ME -- on RA's involvement in the crime. Of course, we don't have all of the information on what LE found in RA's home. It's possible they possess additional evidence that places him at the crime scene in addition to the bullet (shell casing?) found. It's also possible that they found evidence that shows RA's interest in the ostensible "Nordic beliefs" the symbolism at the crime scene may represent. It sounds like the defense is interested in getting this evidence thrown out, so it also follows that in the absence of all of the information on RA, the defense has manufactured an alternative narrative to distract from this evidence / distract or sway the jury later on. Of course this is a possibility.
The document also suggests that LE's consultation with a professor at Purdue and the FBI's BAU led them to suspect a ritualistic crime, which they were apparently uninterested in following through with. They cleared H, for example, pretty soon after the murders in spite of what I find to be compelling evidence that suggests his involvement in or knowledge about the murders.
FWIW, I find the document to be very silly in places and I also understand their rhetorical moves to cast doubt on LE's narrative and their insistence that they finally caught the guy. Even so, the other suspects introduced in the document, and LE's inability or unwillingness to properly investigate them, creates doubt and is also, unfortunately, what I would characterize as another incredible error on Delphi police's investigation into this crime. This does not make them look good and raises serious questions about the investigation and the current suspect in custody.
All IMO.