Washington, DC [US], December 31 (ANI): An Indian-Origin couple, along with their teen daughter, were found dead in a tragic incident at their mansion in the United States. The couple who died were identified as Rakesh Kamal, 57; his wife, Teena; and their daughter, Arianna, 18. On Thursday evening, at a sprawling 19,000-square-foot mansion in Dover, about 20 miles southwest of Boston, Norfolk County District, the family was found dead, Attorney Michael W. Morrissey said during a news conference on Friday. Morrissey added that at around 7:24 p.m. (local time), a family member who had gone over…