The four levels of mens rea set forth in the Model Penal Code are:
1. Purposely - Express purpose to commit a specific crime against a particular person
2. Knowingly - Knowledge that one's actions would certainly result in a crime against someone, but did not specifically intend to commit that crime against the particular victim which one is accused of injuring
3. Recklessly - Knew that one's actions had an unjustifiable risk of leading to a certain result, but did not care about that risk ("reckless disregard"), and acted