Vessel abandoned.... foul play suspected

I am a marine surveyor, normaly on behalf of Hull & Machinery Underwriters’ interests. I am currently dealing with a case where a ship was abandoned and foul play is suspected in the crew flooding the engine room. I will be interviewing the crew next week and was wondering if there is anyone out there who could give some advice on particular questions to ask regarding this incident?

Any replies and input wil be appreciated.

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