Ouch. That looks bad, what happened? :)
"What happened" is up to the referee. I kept the text vague enough that several options are available. Maybe the bank holding the mortgage hires the PCs to investigate, or since this ship was designed as kind of an "armored car in space", maybe the owner of the cargo wants it investigate. Missing cargo, missing crew, some spilled blood... very suspicious. Was it pirates, as it appears? That area of space has a lot of pirate activity. Did the crew do it themselves and stage it to look like piracy? What was the cargo anyway, and who benefits most my its disappearance? I'd like to sit down and write the adventure someday, but real life is kicking my butt lately and my Traveller hobby time is extremely limited for the time being.
I hear that, life is kicking my butt too, with the same result, less Traveller time. Still enjoying your work as always.