John Gill Commentary Esther 9:15

"And the Jews that were in Shushan gathered themselves together on the fourteenth day also of the month Adar, and slew three hundred men in Shushan; but on the spoil they laid not their hand." — Esther 9:15 (ASV)

For the Jews that were in Shushan gathered themselves together
on the fourteenth day also of the month Adar
As they had on the thirteenth:

and slew three hundred men at Shushan ;
the Targum adds, of the family of Amalek: but there is no reason to confine it to them; it respects all such as were the enemies of the Jews, and rose up against them; so that the whole number slain in Shushan were eight hundred persons, besides the sons of Human:

but on the prey they laid not their hand; (See Gill on Esther 9:7).