Bobbi Kristina Brown's cause of death known but undisclosed at the moment - Here's why

The Coroner handling the Bobbi Kristina death case have reportedly discovered the cause of her death but it will remain undisclosed until investigations into the circumstances of her death are finalised. 

 TMZ reports that

Bobbi Kristina's cause of death is now known, but no one's talking, because police are still on the hunt for evidence that could lead to a homicide prosecution. The Fulton County Medical Examiner just said it knows exactly what killed

Whitney Houston's daughter, but they can't reveal it to the public because a judge ordered the findings sealed.

An homicide investigation is currently in progress with her Ex boyfriend Nick Gordon as the person of interest.