The issue focused on by police after the deaths of three young men on a beach in Kent has been discussed at a High Court hearing.David Parker, 25, Andrew Mitchell, 23, and Luke Fisher, 17, died after being knocked down by the boat they were trying to row from Kent to Spain.Post-mortem examinations showed they had both suffered fatal injuries.Dr Graham Mitchell, who treated them, said it was not possible to rule out murder. Mr Mitchell's father told the hearing he did not think his