SONEPAT: Honour killings in Haryana claimed two more lives as the brother of a 16-year-old girl strangled her to death for being involved with a boy of the same village, on Thursday. A day after the girl was killed, the boy committed suicide in school. Rakesh Kashyap, 18, was found hanging from a tree in his school in Bhainswal village of Sonepat district. On Thursday, police said they arrested Ravi Kashyap for killing his younger sister Usha and produced him before a judge who sent him to judicial custody. Ravi confessed to the crime, saying he flew into a rage on seeing his sister and Rakesh in a compromising position, a police officer said. The girl's father, Subhash Kashyap, told cops that on Wednesday, he found his daughter's room bolted from the inside when he came back from the fields. He broke open the door to find his son standing next to the girl's body. Whether it's the khaps or feudal patriarchy, Haryana's violent social order claims scores of lives every year. Earlier this month, a Karnal court gave the death sentence to five members of a khap panchayat for killing a couple --Manoj and Babli-- who were accused of transgressing norms by marrying within the gotra or lineage.