Sadly, an Austrian diver, Markus Groh, died after a shark diving in the the Bahamas. (See the article in the Wiener Zeitung)
The details are still unclear, but it appears that Markus was mistakenly bitten on the leg (probably calf), and either died from loss of blood, or died as the result of lung overexpansion injury (alternatively called arterial gas embolism. Wikipedia article on AGE). The exact cause will probably become known in the days to come, but my sincere condolences go out to Markus's family - especially his daughter. My thoughts and prayers are with you.
Link to my follow-up post on "shark tourism"