Helps pls Do you consider Brown to be a martyr or a murderer? Was it right to kill slaveholders? Do the ends justify the means?

In the 1800s, many americans believed in the policy of manifest destiny. what did this mean? the nation’s mission was to expand to the pacific ocean. the nation should stay away from involvement with foreign countries. the nation should latin american countries achieve independence. the nation’s mission was to expand into latin america.