The Four Suspects: A Miss Marple Short Story

‘Who can say?’ Sir Henry shrugged his shoulders. ‘A push from behind? A piece of cotton or string tied across the top of the stairs and carefully removed afterwards? That we shall never know.’

‘But you do think that it – well, wasn’t an accident? Now why?’ asked the doctor.

‘That’s rather a long story, but – well, yes, we’re pretty sure. As I said there’s no chance of being able to bring the deed home to anyone – the evidence would be too flimsy. But there’s the other aspect of the case – the one I was speaking about. You see, there were four people who might have done the trick. One’s guilty; but the other three are innocent. And unless the truth is found out, those three are going to remain under the terrible shadow of doubt.’