 To this day, the perpetrator has never been identified.It was revealed in a 2019 episode of "Cold Case" that police had a prime suspect, a retired marine engineer with explosives expertise and anti-union attitudes; however the evidence was considered circumstantial and insufficient to lay charges.On 10 July 1985, the Greenpeace vessel "Rainbow Warrior" was sunk by the French foreign intelligence service, the Direction Générale de la Sécurité Extérieure (DGSE).