Hours after he allegedly stabbed his neighbour and son to death, a financier living in Tara Apartments, located in South Delhi’s upscale Alaknanda, was arrested late Friday from Ghaziabad. Police said the accused, Asad Querishi, had an ongoing monetary dispute with the victim, Karan Sood (30) and attacked him, his father Rakesh Sood (60), and his cousin Rahul (30) around 6 pm on Friday. The Soods lived in O Block of the society and ran a real estate business based out of Kalkaji. Asad lived in F Block. Rahul, a resident of Shimla, had come to visit the family and was to return home on Sunday. During questioning, Asad told the police that about six to seven months ago, he had bought a second hand car from Karan, and paid Rs 5 lakh for it. “He claimed that Karan took away the car but didn’t return the money. This, Asad claimed, led to their argument,” a senior officer said. However, police said, according to Karan’s family, he had taken Rs 1 lakh as loan from …