NEW HAVEN, Conn. (AP) — There is no doubt who is responsible for the Newtown school massacre. The shooter is dead and the prosecutor handling the case has said he does not expect any charges.

Yet authorities are continuing to keep search warrants and police records secret. Media outlets have pressed for the release of more records, which could shed light on a crime that has revived the national debate over gun control and could change the way guns are regulated.

The massacre has led to proposals for universal background checks on gun buyers and bans on assault weapons and high-capacity ammunition magazines. It also prompted reviews of school security and mental health care and led to proposed legislation in Connecticut that would forbid arcades and other establishments from allowing children under 18 to play point-and-shoot video games.

The 20-year-old shooter, Adam Lanza, killed his mother at their home before killing 20 first-graders and six educators at Sandy Hook Elementary School on Dec. 14. He killed himself as police arrived.

Prosecutor Stephen Sedensky III successfully argued in December to keep search warrant affidavits and applications related to Lanza’s house and the car he drove to the school sealed for 90 days, saying disclosure would jeopardize an ongoing investigation. He said at the time no arrests were anticipated but had not been ruled out.

News media advocates say the records should be unsealed, arguing the public has a right to see such records, which include what was found in the house and car. They say records may be sealed only when an investigation would be hurt by disclosure.

“There seems to be absolutely no reason that they would need to. It’s not going to jeopardize the case in any way,” said Linda Petersen, chairwoman of the Freedom of Information Committee of the Society of Professional Journalists.

William Fish, an attorney who has represented the news media in high-profile cases that were sealed in Connecticut, also said the sealing does not appear justified since no prosecution is likely. He conceded, however, that “it’s not a surprise to me that a court has in fact sealed the records just because it’s so horrible.”

Newtown police denied requests by The Associated Press for 911 calls and any police reports involving Lanza or his family. State police also declined to release records, citing the pending investigation.  (continue reading)