Yes, in the interview with Kristen Mittelman and Stacy Chapin posted somewhere above, Kristen made it clear that there was abundant DNA and that
@othram knew who was the culprit, but due to the gag order, Othram was disallowed to reveal this info until the gag order was lifted.
That meant that sadly, Othram was not permitted to give that solace to the families, but I think we understand that Judge Hippler did not want to jeopardize what was expected to be a long trial.
The budding friendship and partnership that we glimpsed between Stacy and Kristen was lovely to witness.
JMO based on said interview.