13.Now the question is, whether it could be presumed that it was this accused who administered poison to the deceased and he also consumed the same. In our considered view, this is the only inference which could be drawn from various available circumstances. As we have already pointed out, his wife had become mentally ill and she had gone to her parental home. D.1 was mentally retarded and D.2 was dump. Probably, there was depression in the mind of the accused. From the fact that the house was found locked inside, all the three had consumed poison, it can be safely presumed that it was this accused who consumed poison and also administered poison to his children viz., D.1 & D.2. D.1 was mentally retarded and therefore, on his own, he would not have consumed poison. D.2 was a dump and he was too young therefore, he would not have consumed poison, on his own. Thus by all means, the only reasonable inference which should be drawn is that it was this accused who administered poison to the deceased and with a view to end his life, he had also consumed poison. Thus, the prosecution has clearly established that it was this accused who caused the death of the deceased viz., D.1 & D.2.