Determining causation | Law homework help

Scenario 1
Pat carelessly leaves her keys in her car. A thief gets in the car and starts to speed away. Moments later, the thief hits Kevin with the car one block away from where Pat parked the car. Kevin sues Pat for negligence.
Scenario 2
Pat carelessly leaves her keys in her car. A thief gets in the car and starts to speed away. One month later, the thief hits Kevin with the car in another section of the city. Kevin sues Pat for negligence.
Step 2 Prepare an internal memo.
Prepare an internal memo analyzing causation for each scenario