I have learned many things about what happens when bodies end up in water due to the show Case Files: Dark Waters, here are some interesting things:
Alligators are predators but they are NOT scavengers, so if you were hoping to get rid of a body that way, don't do it in gator country.
Crustaceans ARE scavengers, however, and will do a lot of damage to a body.
It doesn't make a difference if you drop a body from a moving boat or place it in the water, the tide will take it all the same.
Honestly, don't dump a body in water unless you know about the tides, local wildlife, water salinity, temperature.
Actually, don't kill people.
