OK, I let my friend use my car yesterday, and he was making an improper left turn which caused an accident!?

My car got hit, and 2 others were involved in the accident. So 3 cars all together, the lady behind him went to the hospital, so did my friend. My friend is licensed, and my car is insured, is he liable or is my dad? (he pays for my insurance)...I just don't want to be screwed if my dad has to pay anything!So my question is, who is liable for all of this?