Some background on
previous terror attacks in Austria (mostly in the 1970s and 1980s):
* 1975 (Armenian terrorists shoot & kill the Turkish ambassador in Vienna)
* 1975 (OPEC terrorist attack)
* 1981 (Palestinian terrorists kill Heinz Nittel (SPÖ), President of the Austro-Israeli Society)
* 1981 (Palestinian terrorists attack a Vienna synagogue and kill 2 people)
* 1984 (Armenian terrorists bomb the Turkish embassy and kill a Turkish diplomat in Vienna)
* 1984 (Armenian terrorists kill a Turkish diplomat in his car in Vienna)
* 1985 (Vienna and Rome airport terrorist attacks)
* 1989 (Iranian agents/terrorists kill 3 Kurdish politicians in Vienna)
* 1995 (Austrian right-wing extremist/terrorist Franz Fuchs kills 4 Roma with a pipe-bomb)
* 1995 (two Austrian left-wing extremists kill themselves after blowing up an electricity tower)
* 2009 (a former bodyguard of Chechen Pres. Ramzan Kadyrov is shot dead in Vienna)
* 2009 (Sikh fundies kill an Indian guru and injure 16 others in a Sikh temple attack in Vienna)