I looked up this guy's bio the other day. He was an Air Force lawyer, stationed at the SJA in Rhein Main Germany in the 80's. Just so happens my mom was a civil service court reporter also stationed at Rhein Main in the 80s. I gave her a call.
Mom: Oh yeah I remember him. I worked a lot of trials with him. Defense attorney. Nice guy.
Me: That's it? Give me the good stuff.
Mom: Are you asking me if he's gay? I have no idea, never saw him date anyone.
Me: So that's it, just a 'nice guy'?
Mom: There was no inkling back then of the monster he'd become. (Pause). Well there was one thing. He always kept to himself. Very private. I never saw him socialize with anyone from the office. Not once.
I don't care if this guy sucks cock or not, and I'm not such an asshole as to disparage a person that wants to keep to themselves, but this is Lindsay Graham we're talking about, and I am an asshole, so I choose to believe any single guy in his 20s, in West Germany in the 1980s, that doesn't have a beer now and then with his coworkers, is a fucking weirdo.