Megadeth’s Dave Mustaine has received some serious backlash from the recent remarks he recently made onstage in Singapore suggesting that the Obama administration “staged” recent tragedies like the one in Aurora, Colo. and the massacre at the Sikh temple in Milwaukee, Wis., in order to promote stricter gun laws.

Mustaine then tried to do some damage control by appearing on the show ‘Info Wars’ to clarify his statement, but fans and victims alike are not impressed with what he had to say. One of the victims who was in the Colorado theater waiting to see the ‘Dark Knight Rises’ movie when the gun spree erupted has gone on record calling the conspiracy theory “absurd” and now Motley Crue bassist Nikki Sixx is weighing in as well.

Sixx took to his personal Facebook page posting a link from the L.A. Times reporting what Mustaine said about President Obama. He also commented pretty candidly, saying, “Dave Mustaine is f—ing a–hole. I can’t even imagine how deep this cuts the victims’ families of these shootings.” He continued, adding, “He owes every family an apology as well as our great country.”

In addition to that, he added a message directed personally to Mustaine, saying, “Hey Dave if you think America is turning into ‘Nazi America’ as you are quoted saying. Then move the f— out.”

Sixx may be brutally outspoken but he’s also willing to put his money where his mouth is. It was recently reported that Motley Crue and Kiss joined forces to donate $100,000 to the Aurora Victim Relief Fund when ‘The Tour’ stopped in Englewood, Colo. last week (Aug. 9). At the time, Sixx commented, saying, “We bonded together with our tour partners and friends Kiss to donate money, but we also hope it inspires others to do the same, no matter how big or small.”