I've seen some things in my time, so anything is possible. But I seriously doubt this guy did himself in by some sort of deviant sexcapade gone wrong. He looks at Aidan, appraising him while trying to think best how to proceed. If he was killed, staging it this way says something about the mindset of the killer. They didn't just want him dead; I think they wanted to disgrace him, his work, and those around him in the process.
He pulls out a pack of Juicy-Fruit, puts in a piece, then offers one to Aidan, before continuing. The others died in unusual but non-damaging ways, as far as credibility and reputation go. This swabbie was given a full treatment if he was set-up. If not, well then, we bag him, tag him, and put this all behind us.
He looks out the window, as the ladder is rolled up to take them down the ramp and out to the plane. Should be just a few minutes more.
He turns back to Aidan, But really, how many of these cases rolled themselves up nice and neat for you? We're stepping rightt into the deep end on this one, I can feel it.