Charles Woods, father of Tyrone Woods, said he thought Barack Obama had 'no remorse' over the attack and felt Hillary Clinton was 'not telling the truth'.
And he revealed that at the ceremony for the return of Tyrone's body, the Vice President approached his family and asked, 'Did your son always have balls the size of cue balls?'
Mr Woods added that the President seemed cold and distant at the time, saying: 'Shaking hands with him, quite frankly, was like shaking hands with a dead fish.'
Mr Woods launched his blistering attack on the Obama administration during an interview with Glenn Beck on The Blaze yesterday.
rone died on September 11 alongside his colleague Glen Doherty while the pair were protecting a CIA building next to the U.S. consulate in Benghazi.
Ambassador Chris Stevens and diplomat Sean Smith were also killed in the raid, which has become a controversial issue in next month's presidential election due to ongoing confusion over how much the administration knew about the circumstances of the attack..
Mr Woods told Mr Beck that he was disappointed by his meeting with senior officials at the event marking the return of the dead men's bodies.
He said that Mr Biden had acted inappropriately, asking the Woods family in a 'loud and boisterous' tone, 'Did your son always have balls the size of cue balls?'
Mr Woods asked, 'Are these the words of someone who is sorry?'