LUCKNOW, April 7 -- A month-long Google search trail on cyanide, its use and methods of administration recovered from the prime accused's mobile phone became the key breakthrough in unraveling a case of premeditated murder allegedly triggered by years of domestic abuse and molestation in Uttar Pradesh's Meerut district. Police said on Monday that three people, including the sister of one of the victims, have been arrested in the case.

According to police, three men - a 60-year-old grocery shop owner, his 35-year-old employee and their 40-year-old friend -received a tetra pack of country-made liquor from one of the accused, who was an acquaintance, on the evening of April 3 and began drinking at a spot in Daurala. However, soon after, the...