wanted to steal guns to arm the blacks
took a small group of people to steal the guns arm the slaves and start a rebellion against slavery.
Failed and caught
found for treason and hanged for it

John Brown’s Raid on Harper’s Ferry, VA

John Brown had a scheme to invade the South secretly with a handful of followers to arm the slaves and establish a kind of black free state as a sanctuary. He seized the federal arsenal and killing seven innocent people including a free slave also injuring ten or so more. But this failed and they were quickly captured by the US Marines. Brown was convicted of murder and treason which lead him to meet his fate at the hangman's trap.