Funny how hard it is to find anything on this aspect of the story in official public records, but
here's an article from back in late March that provides a little insight.
[. . .]Superior Court Judge John Blawie ordered parts of the documents redacted after state prosecutors requested that the identity of a key witness not be revealed for another 90 days. The judge also approved blacking out some phone, credit card and serial numbers of some of the property confiscated from the Lanza home.[...]
Bear in mind: the redaction and censorship mentioned here are both above and beyond the reach of the initial gag order.
And as I recall...
[. . .]Judge Blawie’s rationale is that “The court finds that due to the nature and circumstances of this case and the ongoing investigation, the state’s interest in continuing nondisclosure substantially outweighs any right to public disclosure at this time.” That is most curious because the alleged perpetrator of the killings, Adam Lanza, allegedly shot himself dead in the school when he heard police arriving — which means there won’t be a criminal trial. Nor are there any lawsuits pending. For that matter, the lawyer who had filed the only lawsuit about the massacre (on behalf of a 6-year-old girl who had witnessed and survived the shootings) quickly withdrew his petition “after facing strong disapproval from people across the country.”
State’s Attorney Stephen Sedensky said in his applications to extend the statutory sealing period, that the affidavits contained information “not known to the general public” and that premature disclosure would “seriously jeopardize the outcome and success of the investigation” by “divulging sensitive and confidential information” known only to investigators. Although no arrests have been made and “none are contemplated,” Sedensky also said the possibility has not been ruled out, and that releasing the information would make it difficult to solve crimes that others might have committed.[...] [emphasis added]
...the reasoning behind the earlier request hinted at the possibility of further arrest(s).
So what, they're
still unsure as to the existence of accomplices?