Israel (now broader Mid East discussion)
She's of a reconstructionist movement in Judaism. They tend to be quite open about having atheists within their community. In other words belief in God is optional. It's about keeping the traditional laws unless there is a specific reason not to. They like performing the rituals, keeping the holidays and sabbaths. Very active with maintaining their services. It's not so much about religion, it's about traditions and their cultural identity.
So with that It wouldn't surprise me a bit to find out that a very frum wild eyed orthodox Jew killed her instead of it being a wild eyed Muslim. Her movement tends to try to reach Muslim's and find peace with them.
They tend to be somewhat anti-Zonists, Would be the ones who are likely reminding everyone that there are two sides to this, and would be calling for Israel to show reasonable restraint with the Gazan innocents.
There are several reform movements that are quite similar in America. Adding them all together they probably out number the very frum Orthadox Jews 2 to 1.