Six months ago, the Somerset County Prosecutor's Office announced it was investigating the deaths of longtime New Jersey political insider John Sheridan and his wife, Joyce, in a "fatal fire." Until last week, authorities continued to conceal that the Sheridans had been stabbed to death and that they were trying to determine by whose hand.

The office's seven-page statement Friday contains facts and arguments to support its disputed conclusion that John Sheridan killed his wife and then himself. But it does not explain why basic information about a horrific crime was withheld from the public for so long. This investigation of the Sheridans' deaths is over, but it should not be the last.