Lisciandro, Frank. Jim Morrison: Friends Gathered Together:

Vince Treanor The Doors’ road manager starting in 1967, he worked the stage at every Doors’ concert until the group disbanded. He created, maintained and repaired the band’s equipment and sound system.

B. Douglas Cameron was a roadie that traveled with The Doors under the supervision of Vince Treanor. According to Cameron in his book, Vince was a gay predator that tried to groom Cameron. Although nothing came of it and the two remain on good terms, it's pretty creepy.

B. Douglas Cameron, Inside the Fire - My Strange Days With The Doors:

Vincent Treanor III was brilliant when it came to building pipe organs, building amplifiers - such as the Monolith stage system first used by the Doors at Chicago's Auditorium Theatre on June 14, 1969 - or setting up assembly lines for amplifier production, as he did for Acoustic Amplifier Company.

He is also very manipulative and, basically, by now, an old queen. The tricks he pulled trying to impress me, using my fascination with the Doors as a catalyst, are nearly unbelievable.

After a long day, Vince and I jumped in the van and drove east from the workshop, then north to the Hollywood Hills. We took a winding route through several neighborhoods to 3220 Durand Drive, a studio apartment Vince rented...

The only problem was the single bed, which I had to share with Vince.

He was so odd, and I kept asking myself, "How could one person be so weird?" Then again, how weird were the Doors? They hired him.

But who, exactly, hired me? The band? No, it was Vince. And the unadorned truth is, Vince was not heterosexual. He was enamored of muscular young men. Like me.

He could also be quite devious. In one letter he asked me how Jim had taken notice of me, and why Jim had asked him to hire me. Vince knew no shame.

The band members may have thought I worked for Vince, but as far as I was concerned, I worked for the Doors.

I spent that first night next to Vince, hugging the wall the whole time. The next night... "Listen, Vince. This sleeping arrangement isn't going to fly."

"That's fine. We'll put the mattress on the floor. You can have that."

"Fine."  

Inside the Fire: My Strange Days With The Doors