Definitely killed by some boat propeller, or (much less likely) by some extremely strange shark
There's a thread by Kelly about it Boat Propeller Death!!
The pattern of the injures is like some signature in this case: see this image of this unlucky (very lucky though, since he survived) dude, for comparison: Attachment 300544 http://blog.pontoonhouseboatodyssey....en-danger.aspx
Thanks for sharing
There's a shark that usually feeds on dead fish the wonds it makes are similar to this either slices or a corkscrew kinda wound check out nature shock ull see what a mean