Here's a few recent ones

December 18, 2010
Jerusalem, Israel
Kristine Luken, a US citizen living in England and touring in Israel, was stabbed to death by Palestinian terrorists while hiking in the hills west of Jerusalem with a friend.

June 30, 2014
Halhul, West Bank
16 year old Naftali Frankel, a U.S. citizen, was one of three Israeli teenagers kidnapped and murdered while hitchhiking from a yeshiva in Gush Etzion.

October 22, 2014
Jerusalem
3 month old US citizen Chaya Zissel Braun was killed when a Palestinian individual with past Hamas associations and terrorist ties rammed his car into the Ammunition Hill light rail station. The attack injured 8 others. The parents of the child were US citizens who had moved to Israel to study in the Yeshiva.

November 17, 2014
Jerusalem
Rabbi Moshe Twersky (60), Aryeh Kupinsky (43), and Rabbi Kalman Zeev Levine (55) were brutally murdered in a terrorist attack at Kehilat Yaakov Synagogue in Jerusalem during morning prayers. The terrorists, who it was later revealed were associated with the People’s Front for the Liberation of Palestine, entered the Synagogue at 7am armed with knives, meat cleavers, axes, and guns, and began firing and slashing wildly at the individuals involved in prayers. A British-Israeli citizen named Avraham Shmuel Goldberg (68) was also killed in the attack, and six others sustained injuries including two police officers. In response to this attack, Israel’s Public Security Minister Yitzhak Aharonovich announced that weapons carrying restrictions would be temporarily eased for private security gaurds and off duty IDF soldiers.

October 1, 2015
West Bank
Eitan Henkin and his wife Naama (both early 30's) were ambushed by Palestinian gunmen as they drove with their four children, all under the age of 10, in the West Bank on October 1, 2015. The gunmen shot Eitan and Naama multiple times and they were pronounced dead at the scene, while the children who had just witnessed their parents murder were only lightly injured. They were buried the following day, and Eitan's parents stated at his funeral that they would raise the children as their own. The funeral was attended by Israeli President Rueven Rivlin, who delivered a eulogy. During the subsequent week it was revealed that the husband, Eitan, was an American citizen