I saw Kahane in Boston not long before he was assassinated. The meeting was small, but I was struck by the intensity of his followers. Is there aything left of his movement?
His son Benjamin and wife were ambushed and killed on a road in Israel a few years later. I would not be surprised if secular Israeli elements helped target him for his Arab murderers. Not sure if any children remained. Meir Kahane's political party in Israel has been BANNED for years by a nation that has been committing slow-motion suicide since 1977.
Unfortunately it has shattered. In Israel the original Kakh organization split into two groups while in the USA the original JDL became secularized and de-Kahanized to the point where they're now just a slightly more militant version of the Anti-Defamation League.
Kahana's associate Chaim Ben Pesach (whose site I can't link to from FR because it's so "extreme") is still around (he's forbidden to enter Israel) and has his own web site and organization as well as affiliates in Israel.
You can do a web search or I will send some links via PM if you're interested.