Very irritated right now. I got on my tablet at about quarter after five, as planned. A notification in the corner clearly stated "Less then three hours to go before Headless Horsemen disappears", which would imply that he was supposed to disappear at 8pm EST, same as every Epic boss before it. I did my first round of the 60th kill, took out 11k HP from it(he missed TWICE, a huge boon), and just now logged on in order to finish him off, my very first 60th kill, and it's been ripped away by freaking Gree suddenly changing up what damn time they stick in the new EB.