Hello Margarita.
Sorry Im having trouble keeping up with the thread as its going so fast. LOL
To answer the bolded question. No I have never seen a case quite like this one and that was what was so surprising to me. It seemed to me that LE could have charged her with some preliminary charges to at least hold her until their investigation was complete. I had previously posted the definition of one particular manslaughter charge that seemed to be at least one charge that was already valid for her until more serious charges could be filed.
"Criminally negligent manslaughter occurs where there is an omission to act when there is a duty to do so, or a failure to perform a duty owed, which leads to a death."
Manslaughter - Wikipedia
Oh well. I just hope LE continues to investigate both LH's death and now EG's death and make sure they thoroughly try to uncover as much truth as possible.