Four members of a family were found dead inside a house here, police said on Monday.The incident took place exactly a year after the infamous Burari mass suicide case.According to the police, they were informed of the incident in Sector 49 here by the neighbours."A team reached the spot and broke open the house and found the four dead bodies. As per initial investigation, Prakash Singh, working at a chemical factory, is suspected to have ended his life after killing the family," said a senior police officer.Police have sent the bodies for post mortem. Singh was working in a chemical factory in Hyderabad and his wife used to run a private school, as per initial probe.