SamosDidier Martial Kouamou and Sidy Keita drowned after a coastguard boat abandoned them at sea.
Years later, no one has been charged for the deaths of the two men, from Cameroon and Ivory Coast.
Masked men allegedly threw the pair overboard after Greek officers denied them the right to seek asylum.
One survivor, Ibrahim, reached Turkey alive and gave journalists the only detailed account.
Sources: Inkstick