Don't even try it, Alis.
No one is pretending it's not awful a woman has been killed.
But the thing that stinks about this thread is the "whataboutTHEMery". The attempt to create an identity of Them, They're the same, They behave the same.
From the OP: After all the trouble in Cologne and other cities to leave a young woman on her own in charge of 11 young men, presumably,beggars belief.
So men in Germany assault women, and some of them may have asylum papers (and some not - wasn't at least one suspect American?)
And that becomes, young people's centres in another country should now be specially scared of refugees? Of course they should have adequate staffing, but all the time for the benefit of staff and residents, and that goes for all children and young people's centres, not just those dealing with refugees.
There was another thread recently titled something like "Refugees attack transwomen". When someone pointed out there was no evidence the attackers were refugees, the description was just "of North African appearance", that OP said "same thing, no difference, doesn't matter."
It's textbook.
Create a group identity and start generalising wildly about Them. This is to be a hate group, so gather negative shit: there'll be some in any "group" of humans. So there always is a black person who murdered someone or a Jewish person who fiddled their taxes or a disabled person who wasn't very nice. And if you don't find enough in your own country, why, spread the net, take in a few more countries, you'll get there. And if that's still not enough, attribute other people's shit to Them. And declare all the shit to be the epitome of Them. Declare Them to be different from Us (we don't do those bad things like murder people or fiddle taxes - and when we do, that's individuals, not Us). Ideally drop in a few terribly concerned [sadfaces] about the "genuine cases", oh dear, you feel so sorry for those, how hard life will be now they'll be blamed as being one of Them - not that you've ever met a genuine case of course, oh no.
This is a modus operandi you can watch in operation over decades, over continents, and over all kinds of target groups (though race and religion are popular for hate-identities).
This is what hinders the really important thing of talking realistically about the challenges that really do exist dealing with everything from economic downturn to immigration to women's rights and human rights more generally.
Because so often there's a whataboutTHEMery hovering to seize anything it can find for its hate-fest against a unified Them. (Who, you know, are all a common group, even if They don't know it.)
So I'm afraid I'm not impressed by the crocodile tears on this thread by people trying to exploit the awful death of a young woman for their particular hate-fest.