No one is honoring Kirk's assassin. But Kirk was a hatemongering fundie asshole, just a younger version of greedy televangelists. He did not die defending free speech. It seems likely that he was assassinated by the Number One assassins thee das, the Israelis. One day, Charlie told the Zionists that they were chilling his vibe by murdering so very many Palestinians and two days later, Charlie was rendered dead by a very well trained sniper.
Perhaps it ruined his day to learn how many Palestinian children were slaughtered by bullets to the head. It is hard to win converts when you are supporting those who deliberately starve children and use them for target practice, which is what the IDF is currently doing.