Who is at fault for car 1 when 2 slammed his brakes on and 3 hit 1?

Based on the provided information, it appears that car 2 may be at fault for the accident involving cars 1 and 3. Here's a breakdown of potential fault:

Car 2:

- By suddenly and abruptly slamming on the brakes, car 2 may have caused car 1 to collide with them from behind. Failure to provide a safe following distance or brake in a controlled manner could be considered negligence.

Car 1:

- Car 1 may also share some responsibility for the accident if they were following too closely to car 2 and did not have enough time to react and stop safely.

Car 3:

- Car 3 may be the least at fault in this scenario, as their involvement seems to have been a result of the collision between cars 1 and 2.

However, it's important to note that determining fault in a car accident can be complex and may involve additional factors that are not mentioned in the given information. It's always best to consult with legal experts or insurance professionals to accurately assess fault and liability in such situations.