A couple and their three children were found dead at their residence in the Lisadi Gate Police Station area here on Thursday night, police said. Meerut Senior Superintendent of Police (SSP) Vipin Tada, who visited the crime scene, said the police received a call about a locked house. Upon reaching the location, the officers found out that the house had been locked from outside, he added. "After gaining access through the roof, they found the bodies of Moin, his wife Asma and their three daughters -- Afsa (8), Aziza (4) and Adiba (1)," Tada told reporters. "The manner in which the house was locked suggests that the individual involved in the crime may have been someone known to the family," he said. The SSP said the preliminary investigations point towards an old enmity as the possible motive behind the incident. "A detailed investigation is underway," he added. The SSP further said the legs of one of the deceased were found tied with a bedsheet, adding a forensic team and senior