a stifling cell in tortola's balsam prison.g the ocean, where the view can't be beat, but comes at a price that no one wants to pay. >> as a criminal trial gets underway, a surprising revelation bubbles to the surface. >> coming up, another diver, in the life of david swain? >> this is the classic motivation. to classic ingredient of murder, sometimes. the other woman. >> yes. >> when dateline continues. when dateline continues with nucala. nucala is a once-monthly add-on treatment for severe eosinophilic asthma that can mean less oral steroids. not for sudden breathing problems. allergic reactions can occur. get help right away for swelling of face, mouth, tongue, or trouble breathing. infections that can cause shingles have occurred. don't stop steroids unless told by your doctor. tell your doctor if you have a parasitic infection. may cause headache, injection site reactions, back pain, and fatigue. ask your asthma specialist about a nunormal with nucala. dupixent helps you du more with less asthma. and can help you breathe