One couple knows all too well the pain suffered by the parents of James Foley, the American photojournalist executed on camera last month by the Islamic State.
Billy and Karen Vaughn also lost their son Aaron Carson Vaughn in 2011, when the SEAL Team Six soldier's Chinook helicopter was shot down over Afghanistan.
Now the couple are calling on President Barack Obama to step down, citing his reaction to the Foley video and 'lack of leadership' in confronting ISIS.
On Monday, the Vaughns wrote a letter, calling out Mr Obama's decision to go golfing after holding an important press conference on the Foley video.
'As Commander-in-Chief, your actions - or lack thereof - Mr President, cost lives.
'As you bumble about in your golf cart, slapping on a happy face and fist-pounding your buddies, your cowardly lack of leadership has left a gaping hole — not only in America’s security — but the security of the entire globe.
'Your message has come across loud and clear, sir: You are not up to this job. You know it. We know it. The world knows it,' the Vaughns wrote in the letter published on World Tribune.
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