By Burak Bekdil
The bomb attack in Istanbul on the morning of March 19 was the fifth similar act of terror targeting two of Turkey's biggest -- Istanbul and Ankara -- since October.
The suicide bomber, a 24-year-old with links to the Islamic State of Iraq and Syria (ISIS), detonated his explosives on Istiklal Avenue, one of Istanbul's busiest streets and a popular tourist attraction. Three Israeli tourists (two of them also carrying U.S. passports) and one Iranian were killed. Dozens of wounded people were rushed to nearby hospitals. The death toll since October was now at nearly 200, including 14 tourists.