SOLVED. Adult Crime Fiction - written in the style of police interview transcripts - family holiday in Greece at somewhere they had been gong to for years and the father dies it’s not certain of it was murder or accidental

[Sarah]

So from what I remember the whole book is written, with each chapter like a transcripts of a police interview and in the end no one is charged with a crime, it leaves to to make your own decision of whether a crime was even committed.
A family holiday I think also with some friends invited quite a wealthy, dysfunctional family. The father of the family dies and it could be an accident but most of the People on the holiday seem to have had motive and possibly opportunity to kill him.

[Sarah]

I figured this one out - it’s After the Accident by Kerry Wilkinson.

[Ky]

After the Accident for the link.