He had to be killed urgently - if he suffered, all the better.
A clear cut case?.
The private care nurse neither denies nor admits to it.
A Murder in a private home is quickly and easily solved by the police, their culprit established by fingerprints on the Murder weapon: a jar of poison.
If the blame could be shifted to someone else, so be it.
He had to be killed urgently - if he suffered, all the better