In one massacre this man killed the following people: Alastor,  Alastor's nine brothers, and their father.
In one massacre this man killed the following people: Alastor,  Alastor's nine brothers, and their father. He was then scratched in the  face by the survivor Periclymenus when he turned into a hawk. In  another massacre this man killed the following people: a pair of  brothers who were born from a silver egg that Molione produced named  Eurytos and Kteatos, (*) Phyleus's brothers, and Phyleus's father.  Subsequently, this man established the Olympian games. This man had  massacred the aforementioned kingdom of Pylos, ruled by Neleus, as well as  the kingdom of Elis, ruled by a man who owned some dirty stables, Augeas.  For 10 points, name this son of Zeus and Alcmene.
In one massacre this man killed the following people: Alastor,  Alastor's nine brothers, and their father.
Heracles