A person is guilty of assault in the first degree when:
1. With intent to cause serious physical injury to another person, he
causes such injury to such person or to a third person by means of a
deadly weapon or a dangerous instrument; or
2. With intent to disfigure another person seriously and permanently,
or to destroy, amputate or disable permanently a member or organ of his
body, he causes such injury to such person or to a third person; or
3. Under circumstances evincing a depraved indifference to human life,
he recklessly engages in conduct which creates a grave risk of death to
another person, and thereby causes serious physical injury to another
4. In the course of and in furtherance of the commission or attempted
commission of a felony or of immediate flight therefrom, he, or another
participant if there be any, causes serious physical injury to a person
other than one of the participants.
Assault in the first degree is a class B felony.