Putin did it. Sorry, he didn't. In the end, it was not Russia "aggression" that attacked the heart of Europe. It was a pro-style jihadi commando. Cui bono?
Careful planning and preparation; Kalashnikovs; rocket-propelled grenade launcher; balaclavas; sand-colored ammunition vest stuffed with spare magazines; army boots; piece of cake escape in a black Citroen. And the icing on the lethal cake; faultless Paris-based logistical support to pull that off. A former top French military commander, Frederic Gallois, has stressed the perfect application of "urban guerrilla technique" (where are those notorious Western counter-terrorism "experts" when one needs them?)