Add to the list on the Mavi Marmara, Convicted terrorist hijacker Erdinç Tekir. 

Convicted terrorist hijacker Erdinç Tekir, IHH operative wounded aboard the Mavi Marmara, participated in the 1996 terrorist attack on the Russian ferry Avrasya to bargain for the release Chechens from Russian prisons. He was sentenced to eight years in prison.

Reports in the Turkish paper, Hurryiet, and the Jerusalem Post affirm this.
http://en.wikipedia.org/wiki/Erdinç_Tekir