How did JT "wash his hands". He made this statement following the news.

"Canadian Prime Minister Justin Trudeau said Monday that it was likely Hall had been executed: "It is with deep sadness that I have reason to believe that a Canadian citizen, Robert Hall, held hostage in the Philippines since September 21, 2015, has been killed by his captors," Trudeau said in a statement, adding that officials were working to officially confirm his death.
"The vicious and brutal actions of the hostage-takers have led to a needless death. Canada holds the terrorist group who took him hostage fully responsible for this cold-blooded and senseless murder," Trudeau said."

Paying ransom is something no government on earth would do. It would just set a dangerous precedent and sow the seeds for others to be kidnapped. 

Saying that incident and Khadr's have anything in common is ridiculous.