<p>New Delhi: Police on Thursday recovered blood-stained clothes and an army knife allegedly used in a triple familicide in south Delhi's Neb Sarai area from a nearby forest.</p>.<p>Twenty-year-old Arjun Tanwar was arrested on Wednesday for allegedly murdering his parents and sister.</p>.<p>Ex-armyman Rajesh Kumar (51), his wife Komal (46) and their daughter Kavita (23) were found dead at their house in Deoli village on Wednesday morning.</p>.<p>According to the police, Tanwar did not have good relations with his parents and was upset that they liked his sister more than him.</p>.Delhi triple murder: 20-year-old son arrested for stabbing parents, sister to death.<p>The police recovered his blood-stained sweatshirt and the army knife which he used for killing his parents and sister from Sanjay Van late Wednesday night.</p>.<p>During interrogation, Tanwar told the police that he first killed his sister by slitting her throat while she was asleep.</p>.<p>Then he went upstairs where he stabbed his father in his neck and slit his mother's throat, who was in the washroom, police said.</p>.<p>Tanwar then changed his blood-stained clothes, put them in his gym bag and went to Sanjay Van where he dumped them along with the knife used to commit the crime, they added.</p>.<p>After coming back home, he tried to clean blood spots in the washroom and other articles in the house, the official said.</p>.<p>Tanwar then provided a false alibi to the police, claiming he had been at the gym when the family members were murdered, he said.</p>.<p>The accused was pursuing a degree in political science at a Delhi University college and was a trained boxer. He represented Delhi in a state boxing event, where he won the silver medal. He had previously studied at the Army Public School in Dhaula Kuan.</p>
<p>New Delhi: Police on Thursday recovered blood-stained clothes and an army knife allegedly used in a triple familicide in south Delhi's Neb Sarai area from a nearby forest.</p>.<p>Twenty-year-old Arjun Tanwar was arrested on Wednesday for allegedly murdering his parents and sister.</p>.<p>Ex-armyman Rajesh Kumar (51), his wife Komal (46) and their daughter Kavita (23) were found dead at their house in Deoli village on Wednesday morning.</p>.<p>According to the police, Tanwar did not have good relations with his parents and was upset that they liked his sister more than him.</p>.Delhi triple murder: 20-year-old son arrested for stabbing parents, sister to death.<p>The police recovered his blood-stained sweatshirt and the army knife which he used for killing his parents and sister from Sanjay Van late Wednesday night.</p>.<p>During interrogation, Tanwar told the police that he first killed his sister by slitting her throat while she was asleep.</p>.<p>Then he went upstairs where he stabbed his father in his neck and slit his mother's throat, who was in the washroom, police said.</p>.<p>Tanwar then changed his blood-stained clothes, put them in his gym bag and went to Sanjay Van where he dumped them along with the knife used to commit the crime, they added.</p>.<p>After coming back home, he tried to clean blood spots in the washroom and other articles in the house, the official said.</p>.<p>Tanwar then provided a false alibi to the police, claiming he had been at the gym when the family members were murdered, he said.</p>.<p>The accused was pursuing a degree in political science at a Delhi University college and was a trained boxer. He represented Delhi in a state boxing event, where he won the silver medal. He had previously studied at the Army Public School in Dhaula Kuan.</p>