Sarcasm is all about the tone of voice. You need to hear (and preferably see) a person who is being sarcastic to understand the joke.

And it doesn't work on the Internet. At all. 

And it is especially inappropriate when you're talking about a mass shooting that took 20 innocent children from us. 

CNN's Piers Morgan was more than happy to use the tragedy to advance his anti-gun agenda but when he's called on it, he gets huffy and sarcastic. Breitbart caught the offending tweet:

This morning on Twitter, CNN's Piers Morgan answered "of course I am, you moron" when asked if he was "gleeful that a tragedy happened to help you push your cause."

There's no doubt that the "tragedy" referenced is the horrific Sandy Hook Elementary School shooting that occurred last Friday, and that the "cause" is gun control:

-

--

Over the past 24 hours, Morgan has become increasingly unhinged over his pet issue of American gun control. Last night, on his low-rated CNN show, Morgan lit into a gun rights advocate, hysterically calling the man an "idiot" and "unbelievably stupid."