One year after Fort Hood soldier Vanessa Guillen was murdered, "20/20" has the first television interview with her fiancé Juan Cruz.

ABC News anchor John Quiñones spoke to Channel 5's John Paul Barajas on the discoveries he found while reporting on the case. 

“What Happened to Vanessa?”/ “¿Qué le pasó a Vanessa?” airs on “20/20” on Friday, June 11 (9:01–11:00 p.m. EDT) on ABC.

Watch the video above for Channel 5's interview with ABC News anchor John Quiñones.