The incident happened yesterday evening. Galmit Sangma (25) of Chenggini village, stated to be mentally unsound entered the house of one Barning Marak in New Rongara and attacked the mother and child, the police said.
"Galmit Sangma attacked the duo with the axe leading to the immediate death of the child. The mother suffered grievous injuries as well," said SGH police chief, Abraham T Sangma.
Hearing the cries of the mother and the child, the villagers caught hold of Galmit Sangma and beat him to death, police said.
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