The condition of his clothes is very odd. Normally, unless you're talking about large predators, smaller water life doesn't tear them up like that.
The jean shorts, except for their condition, appear new. No fading, wear, or stress marks from typical usage.
And his hand and fingers show that he was NOT submerged in water, nor was he dead for very long.
The water's color shows a very high content of algae-way too much for fish to survive in-they would suffocate. It's nothing but a stagnant puddle.
The picture of his chest shows what might be a stab wound near the heart area.
This is definitely one of the most intriguing deaths I've seen on here...
I was thinking the same. No real evidence of animal or insect activity. The arm and legs could have easily been torn off by scavengers. Odd.