User blog comment:FairyRaven/Fairy Tail Chapter 467: Mother's Key, Review and Commentary/@comment-7418318-20160107102332/@comment-1776824-20160107140143

Marin loves women, but he also was treated like a slave instead of a human being. Presumably this has gone on for some while and he had had enough at this point after being shrunk, kept in a bottle, cock-teased and then subsequently stepped on. He wanted revenge.

Also: Assassination - the murder of a prominent person

I introduce you to Brandish, a prominent person.