New Delhi, Feb. 13 -- A 32-year-old property dealer and his wife were found dead in northeast Delhi's Harsh Vihar area on Wednesday afternoon, police said, adding that they suspect the couple died by suicide following a dispute. Police said the deceased couple, aged 32 and 30, lived with the man's family on the first floor of their three-storey house in Harsh Vihar area. The couple was alone on their floor at the time of the incident; their children had gone for tuition. A noise was heard around 3.30pm, following which family members found the man lying unconscious in the lane outside the house. He was rushed to a nearby hospital, where doctors declared him dead, said police. Police said they suspect that an argument broke out between the couple, after which the man allegedly jumped from the building and the wife consumed poison. However, it is not yet clear whether the woman died by suicide or if any foul play was involved, they added....