you are an Instructor and your saying you are not responsible for a discover scuba student. In this instance I bet all are guilty. And yes when you murder a diver you should go to prison and when I say murder it means you did not help your discover scuba student get out of the boat when sinking. More or less any Instructor or D/M being paid should have made sure they were out of the boat before themselves got out, plus they know the area and the dive site. The captain retrieved aimee and amit, why did the Inst/DM not help the captain, let alone any other experienced diver that was on the boat.