A 15-YEAR-OLD girl has been accused of spiking a family’s drinking water with pesticide, resulting in the death of her four-year-old half-sister and illnesses among three other family members in Maha Sarakham province.

THE suspected elder half-sister of alleged con woman Monta “Ying Kai” Yokratanakan has been arrested in Nakhon Sawan’s Chumseang district on charges of fraud and falsifying documents.