Jake was stopped in his car at a red light. A pair of teenagers unexpectedly ran up to the vehicle and smashed the windshield with a baseball bat. Jake put his car into park and leaped out to chase the teenagers. Unfortunately, he did not catch them. Worse yet, upon returning to the traffic light, he found that his car had been stolen. A few minutes later, several blocks away, the thief rammed Jake's vehicle into Mysty's truck. The teenagers and the thief have never been identified. Mysty has therefore sued Jake. She claims that if Jake had not left his keys in the ignition while he chased the vandals, the thief would not have been in a position to steal his car and crash into her truck. Jake admits that he should have taken the keys with him but denies that he committed the tort of negligence. Who is right? Explain your answer.