A police team that reached the residence of Virender was put in a fix as all his family members came forward owning up the crime.

A 48-year-old man was allegedly stabbed to death during a fight with his wife and children at his residence in southwest Delhi's Sagarpur area today.A police team that reached the residence of Virender was put in a fix as all his family members -- Virender's wife Mithlesh and three children -- came forward owning up the crime, a senior official said.From preliminary investigation, it appeared that Virender was alcoholic and frequently assaulted his wife. This morning, he had a fight with her and at least one of the children, the 20-year-old son, intervened, police said.It led to a fight between them during which Virender was stabbed with a knife, the official said.All of Virender's relatives were questioned and the eldest son has emerged as the prime suspect. He has been detained by the police and is likely to be arrested, the official said.However, role of the other family members, especially Virender's wife, are also being probed, he added."It is quite a complex matter which is being thoroughly investigated. A case has been registered," DCP (southwest) Surender Kumar said.Virender is survived by his wife (45), daughter (18) and sons aged 16 and 20 years.