On March 17, 1992, an Arab from Gaza went amok on a Jaffa street with a machete. He murdered Ilanit Ohana, 19, of Bat Yam, who was standing near a business where she had just gotten a job as a clerk. A heroic Arab who owned a nearby garage, Abed Abdelghani, 44, rushed to help her and was stabbed to death as well.
The terrorist then went through the streets and injured some 20 people, mostly schoolgirls waiting to enter a Purim party.
People thought the terrorist with a machete was just someone in a Purim costume.
This is what Hamas and its allies celebrate.