"Brookhaven" is a typo, confirmed by Riot LittleLeaf (Creative Director of Season 2)
Twisted⚡
at first I thought Locke's story was taking place on the same inn we saw in Garen's comic, but his story takes place in "Brookhaven" not "Brookhollow"
Not sure if Brookhaven is a location in Brookhollow or if this was an oversight