In this case, Istanbul, Dresden (plus Alexandria and Tehran).
First Istanbul Turkey:

A 24-year-old street seller assaulted a man on the grounds that he was proselytizing Christianity, holding a knife to his throat in Istanbul before surrendering to police, newspapers reported Tuesday... The assailant – identified as 24-year-old pirate CD vendor – wrapped a Turkish flag around the head of İsmail Aydın, 35, put a knife to his throat and shouted, "This is Turkey, you cannot distribute Bibles here," Habertürk newspaper said. The stand-off lasted 20 minutes before the police persuaded the assailant to surrender, according to the daily Sabah... An Italian Roman Catholic priest was shot dead in 2006 and three Protestants – a German missionary and two Turkish converts – had their throats cut in 2007.

Now, for the record, Turkey is a secular republic, not a Muslim country. The Turkish news coverage of this incident is obviously disapproving, and the attacker was promptly arrested. The attacker's mental stability is questioned. This story reflects negatively on certain people in Turkey, but it is not representative of Turkey at all. That's not the point I'm trying to make. Let's continue shall we?
Now, Dresden Germany:

Initially it started out as a liable case: A Muslim woman filed a case against a 28-year unemployed German of Russian descent, in August 2008, after he had called her a “terrorist” on a Dresden street because she wears the higab – the Islamic headscarf that covers the hair.

But, after the Russian (not German) was fined 2,800 Euros for his crime, he decided to take matters into his own hands, stabbing Marwa Al Sherbini outside the courtroom. At least in Turkey the Christian wasn't killed, but there are clear similarities in the nature of the crimes. Now we get to the interesting bit ... the reaction to the incident in Germany in the "Muslim world" (whatever that is).

In Alexandria Egypt:

Alexandria governor Adel Labib “agreed to give the name of martyr Marwa al-Sherbini” to a street in the northern Egyptian Mediterranean city

There's also this:

It has also fuelled anti-German sentiment in Islamic countries, notably Iran and Sherbini's native Egypt, where she has been dubbed the "veil martyr" as she was wearing a headscarf when she was attacked... Iranian President Mahmoud Ahmadinejad blamed the German government for the act, and on the streets around 150 Iranian Islamist students pelted eggs at the German embassy in Tehran chanting "Death to Germany! Death to Europe!"

Meanwhile, back in anti-Muslim racist Germany:
"A meeting with town representatives and the Central Council of Muslims is set to take place next week to decide how we can honour her," Kai Schulz told AFP, adding discussions would also take place with the woman's family. The city's immigration officer, Marita Schieferdecker-Adolph said: "We are thinking of naming one of the city's streets after her."
I guess all I'd like to say (or ask) in conclusion is this: how would people in Egypt and Iran (the ones getting all hot and bothered against Germany) care to respond to the attack on the Christian in Turkey? Anything to say? Would you suggest, perhaps, that chanting crowds should pelt the Turkish embassy in Berlin? Is it fair to blame either Germany or Turkey for these nasty incidents? Is what's good for the goose what's good for the gander?