Detectives are now investigating allegations of conspiracy to rob and murder after reportedly finding swords, rope and a body bag in the car.
The story has hit headlines across the world, and Rimes has now spoken out about the alleged plot against Stone, revealing she has previously found herself the target of criminal activity.
In a series of posts on Twitter, she writes, "I have experienced this first hand, twice when I was younger. The 'plotting' issue Joss is going through. It's scary... It's terrifying. I'm (so) happy my sweet friend is OK."