resentments at the farm. >> we were told he was going to get a nice share of what my dad was to get at the ranch. >> your intent was to fight it. >> oh, yeah. it settles things. >> investigation continues as explosives experts try to determine what exactly happened to roberto. >> we came across a piece of metal. that piece of metal said to him there was something more going on. >> the first clue unearthed. when "dateline" continues. line". is skincare from around the world better than olay? to find out, olay faced the world. we tested our vitamin b3 formula and beat japan's top moisturizers. and even the $400 french cream. olay regenerist faced 131 premium products from 12 countries, over 10 years.