explained that denita was found and she had been shot. and she was dead. and at that point my life just changed completely. >> reporter: nothing prepares you for that, does it? >> uh-uh.fo because i'm wondering who, why, who would want to do this, it just doesn't make sense.d coming up -- police hear from a witness who saw something odd. and suspicious. >> he says, let me call the police. and then she pulls off and takes off out of the complex. s >> when "dateline" continues. wow, that's dialed in. i can still keep my eyes on the road. my truck doesn't have that. it offers an optional technology package with up to 15 different camera views.