The only loss in the file
This record contains one killmail and nothing else - no supporting wrecks, no smaller ships trailing behind the expensive one, just the Leviathan. That is the whole of the available evidence, so the wider fight around it stays unknown. What is documented is precise: the ship, the value attached to that individual loss, the pilot who lost it, and the pilot credited with the final blow.
A crowded file with a quiet heading
The event record counts 188 participants, which is a lot of names for a report that ends with a single loss, and the category attached to it in the source is skirmish rather than anything grander. Read carefully, that combination says only what it says: many pilots appear in the record, one supercapital died, and the rest of the engagement is not something the evidence can describe. For whoever was flying the Leviathan, the paperwork is one line long and very expensive.