pete's first day on the stand. >> he said you're a murderer, aren't you, mr. moore? te who had the motive. >> peter is the one who has indicated, i've been in landscaping for 20 years, i'm broken down, i want to be in the farming operation. what better way to take out roberto and to take out paul? >> when "dateline" continues. . treating their cardiovascular disease, victoza® is also approved to lower the risk of major cv events such as heart attack, stroke, or death. and while not for weight loss, victoza® may help you lose some weight. (announcer) victoza® is not for people with type 1 diabetes or diabetic ketoacidosis. do not take victoza® if you have a personal or family history of medullary thyroid cancer, multiple endocrine neoplasia syndrome type 2, or if you are allergic to victoza® or any of its ingredients. stop taking victoza® and get medical help right away if you get a lump or swelling in your neck or symptoms of a serious allergic reaction such as rash, swelling, difficulty breathing, or swallowing. serious side effects may happen, including pancreatitis