It’s still prejudice even if all your life experience tells you that it must be that way. That is the definition of prejudice, assuming something because of what you think you know about another religion, gender, race, etc. You assume it must have been a Jew because "only Jews behave like that." I'm not saying you're wrong, I'm just saying that you're making a prejudice assumption about Jews without knowing for sure whether or not it was actually a Jew who did it.
I have yet to have any of you yelling it is prejudice who can tell me who else it could have been. Using facts to deduce to a 100% probability who the offenders were is not prejudice. Im sorry. Again, facts dont care about your feelings.
The definition of prejudice is "preconceived opinion that is
not based on reason or actual experience." Emphasis added.
Everything I have said is based in reason and actual experience.