The Devil Man by Edgar Wallace

Medical men loathe inquests: they are time wasters of the worst kind, and there is always the possibility that the ordeal may be interrupted by the too zealous questionings of a juryman. For it is a peculiar delusion of coroner's juries that something is being kept from them.

The inquest on Lamonte, however, was a brief affair, the verdict being an open one. There was not sufficient evidence to justify a verdict of wilful murder, and the jury, after the way of all juries, played for safety, and returned one of those curiously obscure pronouncements which mean nothing.