Fianc&eaigu;e of slain Yale student, Army veteran speaks out after his murder
(Fox News National)

As mystery still shrouds the weekend shooting death of 26-year-old Yale University graduate student Kevin Jiang, his fianc&eaigu;e spoke out Tuesday, describing his deep Christian faith and dedicated volunteer work at a church in New Haven, saying she has `no idea` why someone might have targeted him.