Jonathan Lahdo is a freshman at the University of Pennsylvania studying business and international studies.
On Tuesday, April 4th, the world was taken aback by news of a chemical attack in Syria that killed scores of innocent civilians. It has now been estimated that over 80 were killed in the rebel-held town of Khan Sheikhoun in the north-west of the country by exposure to deadly chemical weapons.  According to the Organisation for the Prohibition of Chemical Weapons (OPCW), at least two different chemical weapons were used, one of which caused symptoms very similar to those of sarin gas, though their tests remain inconclusive and the exact chemicals used have not yet been determined. 
Aside from the details of the horrific events, one main question remained: Who was responsible for these attacks?