Ohio Revised Code Title XXIX. Crimes Procedure § 2901.22

(A) A person acts purposely when it is the person's specific intention to cause a certain result, or, when the gist of the offense is a prohibition against conduct of a certain nature, regardless of what the offender intends to accomplish thereby, it is the offender's specific intention to engage in conduct of that nature.

(B) A person acts knowingly, regardless of purpose, when the person is aware that the person's conduct will probably cause a certain result or will probably be of a certain nature. A person has knowledge of circumstances when the person is aware that such circumstances probably exist. When knowledge of the existence of a particular fact is an element of an offense, such knowledge is established if a person subjectively believes that there is a high probability of its existence and fails to make inquiry or acts with a conscious purpose to avoid learning the fact.

(C) A person acts recklessly when, with heedless indifference to the consequences, the person disregards a substantial and unjustifiable risk that the person's conduct is likely to cause a certain result or is likely to be of a certain nature. A person is reckless with respect to circumstances when, with heedless indifference to the consequences, the person disregards a substantial and unjustifiable risk that such circumstances are likely to exist.

(D) A person acts negligently when, because of a substantial lapse from due care, the person fails to perceive or avoid a risk that the person's conduct may cause a certain result or may be of a certain nature. A person is negligent with respect to circumstances when, because of a substantial lapse from due care, the person fails to perceive or avoid a risk that such circumstances may exist.

(E) When the section defining an offense provides that negligence suffices to establish an element thereof, then recklessness, knowledge, or purpose is also sufficient culpability for such element. When recklessness suffices to establish an element of an offense, then knowledge or purpose is also sufficient culpability for such element. When knowledge suffices to establish an element of an offense, then purpose is also sufficient culpability for such element.