No he had a broadsword and his sons beheaded a slaver. He also stole George Washington’s sword from his slaver great nephew and wielded it against the white supremacists at Harper’s Ferry (I believe by some accounts he parried a sword thrust from an opponent around a door corner)
And don’t make John Brown an irrational religious zealot or mentally insane either, which are the common depictions of him in media. He was religious, but it was not irrational religious zealotry that fueled him but a great Christlike love and compassion and understanding. If you read his life accounts he was greatly admired by the communities he was a part of and he also treated Native Americans very well.
I believe one time a white supremacist possy tried to round up some native Americans nearby and tried to recruit John and his sons, and he told them he would rather form a possy against the white supremacists and drove them off his territory
Ethan Hawke starred as John Brown in Good Lord Bird pretty recently so I doubt Tarantino will make a John Brown flick. Also Tarantino has never actually made a historical film where the main characters are real historical figures. He has stuff like Inglourious Basterds where Hitler gets killed, but none of the main characters in that movie were real.
He beheaded at least one slaver with a broadsword, or rather his men did.
Late in the evening, they called at the house of James P. Doyle and ordered him and his two adult sons, William and Drury, to go with them as prisoners. (Doyle's 16-year-old son, John, who was not a member of the pro-slavery Law and Order Party, was spared after his mother pleaded for his life.) The three men were escorted by their captors out into the darkness, where Owen Brown and his brother Frederick killed them with broadswords. John Brown Sr. did not participate in the stabbing but fired a shot into the head of the fallen James Doyle to ensure he was dead.