Murderous criminals are found almost everywhere but not necessarily with a substantial population - including law enforcement elements - that excuses and thus condones them.
You're not dumb and I'm pretty sure you've done your own research so you know you're defaming Jews - that is, you're engaged in antisemitism.
Are you outraged enough by it to become a community leader dedicated to tracking down and prosecuting Zaki's killers and to take up his causes?
The technique you're trying to employ to divert from the subject topic is called, "throwing a dead cat on the table" - to get everyone to talk about the dead cat, rather than the subject topic. I'm amazed that so many Pakistanis fall for this stuff, rather than call out those who employ it.