This is a strange one. I guess technically the guitar was Scott's, but the studio has been displaying it for awhile now. 

If you walk around a famous recording studio. They have memorabilia from all the famous artists that have done work there. A recording studio in Burbank, California had a Scott Weiland guitar on display. Mary Forsberg, Scott's Ex-Wife, showed up there with her son. Apparently she was causing quite a scene, trying to take the guitar home with her.

The son said he wanted one of his dad's guitars. Police had to be called to the scene. Looks like the Scott Weiland drama is continuing after his death. Mary Forsberg actually filed legal documents stating that Scott made her executor to his will. Scott's wife, at the time of his death, Jamie Wachtel, is still dealing with all of this drama.