A RL threat was made against my life, so what should I do?

Not naming names or anything but a Well Known SL Blogger made a comment on her personal website that she was going to "cheerfully strangle me" in RL. The comment is quite explicit and given the fact that she knows we live in close proximity of one another I'm actually worried about it.

Naturally, while I'm taking the issue up with the relevant authorities, I was curious as to what LL's stance on this type of thing is. I know it's different from general forum disputes and on a third-party site, but I know in the past you've taken action when someone in SL makes violent comments outside of SL and I was wondering what the procedure would be.

Taking up the issue with RL authorities would be the appropriate action, I'm sure! As far as SL is concerned, I don't believe that we can help with your RL problems, sorry. And I'm sorry that someone wants to strangle you.