Ga. Code § 16-5-2 : CRIMES AND OFFENSES — CRIMES AGAINST THE PERSON — HOMICIDE —5-2 - Voluntary manslaughter

(a) A person commits the offense of voluntary manslaughter when he causes the death of another human being under circumstances which would otherwise be murder and if he acts solely as the result of a sudden, violent, and irresistible passion resulting from serious provocation sufficient to excite such passion in a reasonable person; however, if there should have been an interval between the provocation and the killing sufficient for the voice of reason and humanity to be heard, of which the jury in all cases shall be the judge, the killing shall be attributed to deliberate revenge and be punished as murder.
(b) A person who commits the offense of voluntary manslaughter, upon conviction thereof, shall be punished by imprisonment for not less than one nor more than 20 years.

OCGA § 16-5-2