Her cause of death was released AFTER Casey was arrested.
Withholding this much info is absolutely the norm. Withholding cause of death is undoubtedly the norm before an arrest. It's a huge part of how they can verify he veracity of a confession or I ruminating statement.
And every single case, people start screaming about how the authorities need to release their info to the public because we can do better. And every time someone like me has to respond about why releasing details like cause of death would destroy an investigation. But here it is from the horses' mouth:
Why Has Cause of Death Not Been Released in Libby German and Abby Williams’ Murder?
And perhaps most intriguingly, though
autopsies were conductedon both girls, neither police nor FBI have released the cause or time of death for German or Williams. They also have not confirmed whether DNA evidence was found at the scene.
When asked why police have held back these details on such a high-profile case, Indiana State Police
First Sgt. Jerry Holeman tells
A&E Real Crime that it is standard protocol for his officers to keep mum on those issues during ongoing investigations.
“Speaking on behalf of state police, we don’t ever release information about ongoing investigations,” Holeman says. “In this case, we gave out audio and photo evidence from [German’s] video to help locate [the perpetrator]. We do that so when we get key evidence, only the killer or killers know the cause of death. We don’t release it to the media because then everyone and their brother would know, and it’s common to get false confessions from mentally disturbed people. So we’re trying to keep the details close to our vests.”
Why Police Have Not Released Details on the Murders of Libby German and Abby Williams from Delphi, Indiana