The Sulibele police cracked the recent double murder of an elderly couple and arrested their daughter-in-law and her two children on the charge of killing them over a property dispute.
The police said that the accused, Bhagyamma, was upset that her in-laws refused to sell part of a land to bail out her husband and their son, Narasimhamurthy, from a financial problem.
Enraged by this, Bhagyamma roped in her daughter Varsha, 18, an engineering student, and her 14-year-old son to execute the plan and eliminate the couple, said the police.