Hopefully this kind of murder Assassination will not happen again.
How do you mean that?
Like Kim Jong Un's brother that was assassinated?
Or like Sergei Skirpal?
Or Bin Laden?
Or all the tens to dozens of state level officials that have been assassinated over the last 50 years?
Or all the bankers and financiers that mysteriously committed suicide by nail gun sometimes to the back after the "great recession?"
Or the school children that are murder assassinated by other kids bringing guns to school?
Or like the guy in the Colorado movie theater?
Or do you mean hopefully people will stop creating martyrs?
Because according to a USA Today article from yesterday, before he was assassinated Martin Luther King Jr. was extremely unpopular to a vast majority of Americans.
Or do you mean something deeper? Like "I hope we learn nonviolent terrorism against nonviolent terrorism works better than violent terrorism against nonviolent terrorism as it simply validates the message without rational thought, as they become a victim of violence, which no one likes because it's scary."