I feel partly why this situation with Joanna interests me is that my freind was murdered, it was a long time ago, before the internet. I haven't mentioned it previously to those attacking, people were speaking about her and discussing things including about her family in real life, that is how things are. My friend had a horrible death and it upset me a great deal at the time. I remember I used to see people who looked like her walking along and I would have to remind myself she was dead. I have had so much life since and I remember her from time to time and her life cut short. I would not have a problem with people discussing her death to this day.
The man who killed my friend, when her mother asked him if he had seen her (when she was missing) he told her the friend had gone off with a bunch of guys, and pointed to somewhere she had not been, he knew all the things he had done to her including sexual assault and desmembering her, and had her mother/police looking in the wrong place.
Her parents had to wait a long time to bury her, thankfully the man was found in time and put behind bars. He is probably free now!