(a) A person acts purposely when it is his or her 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 his or her specific intention to engage in conduct of that nature.
(b) A person acts knowingly, regardless of his or her purpose, when he or she is aware that his or her conduct will probably cause a certain result or will probably be of a certain nature. A person has knowledge of circumstances when he or she is aware that the circumstances probably exist.
(c) A person acts recklessly when, with heedless indifference to the consequences, he or she perversely disregards a known risk that his or her 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, he or she perversely disregards a known risk that the circumstances are likely to exist.
(d) A person acts negligently when, because of a substantial lapse from due care, he or she fails to perceive or avoid a risk that his or her 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, he or she fails to perceive or avoid a risk that the 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 that element. When recklessness suffices to establish an element of an offense, then knowledge or purpose is also sufficient culpability for that element. When knowledge suffices to establish an element of an offense, then purpose is also sufficient culpability for that element.
(R.C. § 2901.22)