Why did John Brown and his supporters go to Harper’s Ferry, Virginia?

Abolitionist John Brown leads a small group on a raid against a federal armory in Harpers Ferry, Virginia (now West Virginia), in an attempt to start an armed slave revolt and destroy the institution of slavery.  As early as 1848 he was formulating a plan to incite an insurrection.

it was displayed because they had a love for war

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.