Most of us have done evil things which deserve punishment, although that doesn't mean that we should always be given punishment. God is merciful, and does not punish us as we deserve and we need to be imitators of Him.
I'm not really that surprised by the shooting in Tel Aviv. Jewish fundamentalism seems to be becoming stronger in Israel every decade that passes. This may have something to do with the higher birth rates of the orthodox jewry. Synagogues in Israel are more and more doing things like separating men from women. The orthodox put significant pressure on the government to legislate according to their own interpretation of the Torah as well. I know a rabbi who lives in Ein Karem who in his words describes some of the powerful ultra-orthodox rabbis in Israel as 'just slightly to the left of the Ayatollah Khomeini'. Maybe someday the state will become more like some of its more theocratic neighbours in the region, which of course might not bode well considering the number of nuclear weapons it possesses and the frequency with which it seems to get into wars.