Though I find the Armenian more plausible, still, I don't know.
To add to the confusion regarding just who the suicide bomber was!
The mother of suicide bomber who committed a terror attack in Istanbul, Nabila Fadly is a Syrian citizen of Armenian origin, Turkish Haberturk newspaper reported citing the source of the country’s intelligence service.
It is also reported that Fadly arrived in Turkey on Jan. 5, 2016 from Syria, pretending to be a refugee.
An explosion occurred in Istanbul’s Sultanahmet Square Jan. 12, which killed 10 people of German citizenship.
Turkish President Recep Tayyip Erdogan called the explosion a terrorist attack, which was carried out by a Syrian citizen, a former member of the terrorist organization “Islamic State”
There are Armenians fighting alongside PKK/YPG or as I call them KurdISHIS
Take a few minutes and do a search, you'll find even more information
I'm still sticking with my original prediction KurdIShIS was the perp in Istanbul
I'm predicting a PKK suicide bomber (witting or unwitting) And that includes ISIS brand also - Because the KurdIShIS symbiosis has always been apparent.So now we have an individual of Armenian heritage and can connect Armenians to the PKK....