Debt, poison and one blow each: New chilling details in Jaipur quadruple murder

Police investigate Rahul Jha for the Kardhani quadruple murder of his wife and daughters.

Investigators suspect poison or sedatives may have incapacitated the victims first.

Each victim reportedly sustained a single, forceful blow to the head.

Mounting debt is emerging as a potential motive for the killings.

Authorities have announced a reward for information leading to Jha's arrest.