John Brown wanted to seize the federal arsenal at Harpers Ferry so that he could get weapons to give to local slaves in hopes of starting a slave uprising. His plan was to kill or take captive southerners who stood in his way. But, he never succeeded.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
