A man in Delhi was beaten to death in front of his teen son allegedly over Rs 20, the police said on Monday. The man’s 13-year-old son reportedly tried to stop the assault and begged the attackers to spare his father. The police have arrested two brothers, Santosh and Saroj, for the murder of Rupesh last Thursday. The 38-year-old lived in Burari in north Delhi with his wife and children, the police said. The victim was later rushed to the hospital where the doctors declared him dead