Tragic

Tragic is when one feels completely filled with sorrow and despair due to a situation. Tragedy refers to the situation itself in that it is a horrible thing that fills its victims with depression and leaves them hopeless because the catastrophe deeply wounds them. A tragic voice in a text expresses depression and sorrow in their somber tone and attitude due to the events that have happened. 
EX: We see tragedy when there is a horrible bombing or mass killing, car accident or when one loses a beloved one. 
Quotes: One example of extreme tragedy can be seen through the events of 9-11. 
“The tragic events of September 11, 2001 constitute a fundamental landmark in American history. a decisive watershed, a breaking point. Millions of people have been misled regarding the causes and consequences of 9/11” (Chossudovsky,The 9-11 Reader).
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An example of a tragic person can be seen through Carton in “Tale of Two Cities,” who is filled with depression and sorrow because he feels like a failure. 
“I am like one who died young. All my life might have been.”
“I am a disappointed drudge, sir. I care for no man on earth, and no man on earth cares for me.”