Martyr or Murderer? John Brown

I believe that John Brown was a martyr. I think this because it says in a video that god told him to kill people to help the slaves. He is really crazy but he is sticking to his beliefs. He thinks that this is right to kill the people for his beliefs. No people joined him but his five sons. The enslaved people were trying to survive for themselves. It says in the textbook  “I John Brown am now quite certain that the crimes of this guilty land will never be purged away but with blood.” He thinks the only way to solve slavery is violence.