Conversation so far:
Are there any other interesting aspects about the Ahmed Yassin article?
The Palestinian Authority declared three days of mourning and closed Palestinian schools.
What caused the closure of Palestinian Schools by the Palestinian Authority?
Ahmed Yassin was killed in an Israeli attack.
Who were Palestinians mourning when the Palestinian Authority declared three days of mourning?
Ahmed Yassin
When did Ahmed Yassin die?
22 March 2004
Why was Ahmed Yassin's assassination the moment he had been waiting for?
Hamas called for retaliation against Israel. About 200,000 people took to the streets of the Gaza Strip for Ahmed Yassin's funeral as Israeli forces declared a national alert.

Question: Tell me more about his dealings with Palestine?
Self-contained rewrite: Tell me more about Ahmed Yassin's dealings with Palestine?