Who is the dead man?

Choices:
A. A cop.
B. A private detective.
C. not enough information
D. Someone on the fire rescue squad.
not enough information
His eyes were open and his head bobbed around at an impossible angle. He was sitting in about forty feet of water, stone dead, one arm pinned between the rocks. As best I could tell, he had been dead when he landed there. The mud and ooze around him were as serene and smooth as he was. The cop who was assisting me swam over and made a palms up gesture. I shrugged back at him and began to work the body loose. The corpse had only one leg, and as I worked I wondered what he had been doing in the lake. I got the arm free and kicked toward the quicksilver surface above me. The body turned bloated and heavy when I broke water with it, and it took three of us to load it into the police launch. I dried off and got a coke out of the cooler. It was getting to be another Texas scorcher, and the sunlight bouncing off the surface of the lake felt like it had needles in it. My mouth was dry from breathing canned air and the carbonation burned like fire. Winslow, from the sheriff's office, sat down next to me. 'I appreciate this, Dan,' he said. 'No problem.' Sam Winslow and I had grown up together about twenty miles outside Austin in a little town called Coupland. We'd fought a lot as kids, and there were still plenty of differences in our politics and educations. But being on the police and fire rescue squad had brought me closer to him again, and I was glad of it. A private detective needs all the friends he can get. 'What do you make of it?' I asked him. 'Accidental drowning, looks like.' I raised an eyebrow but didn't say anything. 'He's got a bump on the head that could have come off a rock. We'll see what the coroner says.' 'Any idea who he is?' Winslow shook his head. He'd gained weight in his face recently and his jowls vibrated with the gesture.