my 15 year old daughters friend has very strange moods and some anger issues, my daughter has said she no longer wants to be her friend and when I asked why, she said her friend watches horrible videos of people dying and not just in horror films, real life deaths, such as beheadings, and she seems to enjoy them, I don't know how she finds such things on the internet, my daughter is very concerned that this is affecting her mind and causing her anger issues. I feel the need to tell her mother, we get on well, but very frightened of repercussions from the friend against my daughter, and her mom may well just tell me to mind my own business, any advice would be appreciated.
thank you