Arrangements are now being made to repatriate the man’s remains back to Latvia.
Contrary to previous reports that the two surviving Latvian sailors had been detained or arrested on administrative charges by Russian authorities, Ministry spokesman Ivars Lasis told national information agency LETA that they were making the necessary arrangements to come home soon, too.
Greed and corruption were to blame for the sinking of the "Dalniy Vostok" last week in which at least 56 crew died, a spokesman for investigators said on Wednesday.
"There are no doubts that this is a crime at the base of which lies the greed of the businessmen who owned the vessel and corrupt officials," Vladimir Markin, the Investigative Committee spokesman, told Rossiya 1 television.
Many past Russian disasters have been blamed on negligence or violation of safety regulations.
The Dalniy Vostok sank in the Sea of Okhotsk off Russia's far eastern coast last Thursday. 63 people were rescued out of a crew of 132 people, with 13 still missing. Meanwhile, rescuers have called off the active phase of the rescue mission.