Body of the 30-year-old medical resident discovered in Indiana lake April 6 . The body was found by a man who had gone fishing with his son and daughter on Lake Michigan near South Bend. CNN 's Tiffany Campbell and Julia Lull contributed to this report . Investigators combing through 20 minutes of YouTube and surveillance video . Family , investigators trying to piece together what happened .
Body of the 30-year-old medical resident discovered in Indiana lake April 6 . The body was found by a man who had gone fishing with his son and daughter on Lake Michigan near South Bend. Investigators combing through 20 minutes of YouTube and surveillance video . Family , investigators trying to piece together what happened .