Here is a breakdown of the potential responsibilities:
1. the rear you is generally responsible for maintaining a safe following distance and avoiding collisions with the vehicle in front. By hitting you from behind, the driver of the car behind is likely considered liable for your damages.
2. You as the driver who had your brakes on waiting turn, generally had a duty of care to ensure the safety of other road users. However, since you appeared to be stopped and waiting to make a left turn, you may not necessarily be held responsible for causing the rear-end collision between the other two vehicles.
3. The driver who got hit by you when you were hit by the car behind might have a valid claim against you for damages sustained in their vehicle since your car hit theirs due to the impact of the collision caused by the car that hit you from behind.
4. Determining fault and liability in a car accident involves investigating factors such driver behaviors, road conditions, traffic rules, and insurance policies. It is important to report the accident to your insurance company and let their investigator gather information and determine the fault of each party. If necessary, you may also seek legal advice to ensure that your rights are protected.
It worth noting that the specific liability may vary based on the jurisdiction and the specific circumstance of the accident. It is advisable to consult with an attorney or insurance expert to get advice tailored to your situation.