The PFLP claimed responsibility for the assassination and stated that it was carried out as a revenge for the killing of the PFLP leader Abu Ali Mustafa in August 2001. Rabah Muhana, a senior PFLP official, said "The Israelis killed one prominent leader and Mr Ze'evi is one of those who have very, very right-wing points of view on discrimination—he wants to deport Palestinians and he is with the most severe terrorism against the Palestinians". The assassination of Ze'evi was a shock to the Israeli public and left a lasting impression on many Israelis. Thousands of people attended the funeral of Ze'evi that took place a day after the assassination, at the Mount Herzl cemetery in Jerusalem, where Ze'evi was buried. President Moshe Katsav and Prime Minister Ariel Sharon eulogized Ze'evi at his funeral. Immediately after the assassination, the Israeli security establishment launched an intensive investigation to track down the assassins and the PFLP leader who initiated and planned the attack. Israel demanded from the Palestinian Authority to arrest those responsible for the assassination. In April 2002, during Operation Defensive Shield, Israeli security forces learned that the assassins were hiding in the Mukataa, Yasser Arafat's presidential compound in Ramallah, which Israeli troops had besieged since 29 March. Israel demanded that the Palestinian Authority hand over the assassins in return for withdrawing its troops. The Palestinian Authority refused to extradite the assassins. In the end, through international mediation, Israel agreed to a proposal (which came to be known as the "Ramallah Agreement") whereby Ze'evi's assassins would be imprisoned in a Jericho jail guarded by British and American forces, and in return Israel would remove the siege of Yasser Arafat's compound. As a result, in February 2002, Arafat ordered to arrest Ze'evi's assassin squad members and imprison them in the Jericho prison. In May 2002 the British and American forces arrived at the Jericho prison. Nevertheless, after the Islamist militant organization Hamas won the Palestinian legislative elections in January 2006, the Hamas leader Ismail Haniyeh publicly announced his intention to free Ze'evi's assassin squad members. On 14 March 2006, the American and British guards left the Jericho jail, charging that the Palestinian Authority was not sticking to the agreement reached with Israel four years earlier. As a result, Israel launched Operation Bringing Home the Goods on the same day. On 14 March 2006, IDF forces raided the Jericho prison where Ze'evi's assassin squad members were imprisoned with the aim of preventing them from being released by the Hamas government, and bringing the assassins to justice in Israel.