“…That fits the present case precisely: it is not enough to complain that the trial Judge-“failed to direct himself that the circumstances of a false accusation of stealing against the appellant were such insult envisaged by Section 283 of the Criminal Code as would reduce a charge of murder to manslaughter. ” That was the provocative incident. Alone, it cannot sustain the plea of provocation: it was also necessary to show “loss of self-control, both actual and reasonable, and the retaliation proportionate to the provocation.” Split up there are these ingredients of the second constituent of the plea (a) loss of self control, both actual and reasonable, and (b) before there is time for passion to cool. The narrative accepted as credible must show that the person who kills does so in the heat of passion.”