were you present when richard schoeck was shot? >> you know, he knows where richard is going to be.affair with stacey. he is not at home at three, four in the morning the night of the murder. he shows up the next morning, altered his appearance. so when you put all of that together, yeah, there's a lot of ringing bells there. >> juan reyes insists he was home with this family when richard schoeck was murdered. but, will juan's wife backup his alibi when she finds out that he was cheating on her? coming up -- >> if she wanted to throw him on the the bus, that was the time. >> she had a great opportunity. >> when dateline continues. thout treatment. i felt like my movements were in the spotlight. #1-prescribed ingrezza is the only td treatment for adults that's always one pill, once daily. ingrezza 80 mg is proven to reduce td movements in 7 out of 10 people. people taking ingrezza can stay on most mental health meds. ingrezza can cause depression, suicidal thoughts, or actions in patients with huntington's disease. pay close attention to and call your doctor if you become depressed,