RedactedNarrative: WITNESS STATED HE DOCKED V1 06/29/2021.  NO ISSUES OR MALFUNCTIONS WERE NOTED AT THAT TIME.  CALLER REPORTED V1 SINKING AROUND 2000.  NO ONE ON BOARD V1. IT IS SUSPECTED THAT THE PLUG FOR THE VESSEL WAS EITHER NOT PROPERLY INSERTED OR THAT THE PLUG WAS NOT IN AT ALL.  IT IS NOT BELIEVED THAT IT WAS MALICIOUS INTENT AS TO WHY V1 SANK.