Does tragedy in Paris have it's roots in de Gaulle decision to leave Algeria.

Old soldiers may not die and just fade away,but many a French soldier,who is most likely dead now,may in their graves be saying I told you so after today's tragic events in Paris.For terrorists although French by born were no doubt of Algerian descent.Of course,there is long history between France and Algeria for France saw Algeria not so much as colney,but rather,part France,henceforth,when Algeria became independent it broke the heart of many of the France and Algerian too,indeed,many come France after independence seeking a better life,however,many in the Muslim Community are misanthrope.