Which suitor does Odysseus kill first in his palace?

The first suitor Odysseus kills in his palace is Antinous. In Book 22 of Homer's Odyssey, Odysseus begins his attack during the bow contest by shooting Antinous through the throat while the suitor is drinking wine.

Antinous is the most openly brutal and influential of Penelope's suitors. He has consumed Odysseus's provisions, mistreated guests and servants, and plotted to ambush Telemachus on his return from Sparta. His arrogance makes him a fitting first target when Odysseus finally reveals himself.

The killing shocks the assembled suitors, who initially assume it was an accident. Odysseus then identifies himself and declares that the suitors will pay for their abuse of his household. Eurymachus tries to shift the blame onto the dead Antinous, but Odysseus rejects the plea and the slaughter continues.

Leodes is also killed in the hall, but later. Amphinomus is among the subsequent victims, while Eurymachus is killed after Antinous during the same climactic battle. The order matters: Antinous's death signals the collapse of the suitors' power.