Which occurred in the wake of king’s assassination in 1968?

In the wake of king’s assassination in 1968 riots broke out in more than one hundered cities across the United states as people;james earl ray assassinated martin luther king jr

If this is a true or false question i would say true

Jackson  said nullification 'means insurrection and war,' and called it a treasonous attack on america. the second aspect of the  force bill  was the passing in congress of a lower tariff in 1833. this was offered as a compromise to avoid conflict with south carolina, and to attempt to defuse the tense situation.source google