Washinton sources say the attack was done at the request of a US Senator from South Carolina, Lindsey Graham who recently called for the killing of all Russians.
Attacks were carried out by al Nusra/al Qaeda, by units with embedded US Navy SEALs using weapons supplied through US contractor Google Idea Groups in Hatay using transporttion supplied by the White Helmets.
American reconnaissance aircraft have been tracked over Latakia for the past 2 days and are believed to have guided the attack using artillery rockets modified to perform as HYMARS.