Let me reiterate. Violence is not the answer for one reason and one reason only. Once it starts and everyone joins, it will be very, very hard to stop.
edit: be
The gunman made his own gun, in a country with ultra-strict gun laws. The Unabomber made his own bombs. The Seattle mall Islamist knife attacker refused to stay down after being shot multiple times.
My takeaway: political terrorists are particularly motivated. Secondly, gun laws slow them down but don't stop them.
> Yamagami told investigators that he had shot Abe in relation to a grudge he held against the Unification Church (UC), a new religious movement to which Abe and his family had political ties, over his mother's bankruptcy in 2002.
> The assassination brought scrutiny from Japanese society and media against the UC's alleged practice of pressuring believers into making exorbitant donations. Japanese dignitaries and legislators were forced to disclose their relationship with the UC, (...) the LDP announced that it would no longer have any relationship with the UC and its associated organisations, and would expel members who did not break ties with the group. (...) [The parliament] passed two bills to restrict the activities of religious organisations such as the UC and provide relief to victims.
> Abe's killing has been described as one of the most effective and successful political assassinations in recent history due to the backlash against the UC that it provoked. The Economist remarked that "... Yamagami's political violence has proved stunningly effective ... Political violence seldom fulfills so many of its perpetrator's aims." Writing for The Atlantic, Robert F. Worth described Yamagami as "among the most successful assassins in history".