particular may have had more than a million reasons to want roberto dead. once again, here s keith morrison. reporter: when people hear the words fortunes and california in the same sentence, their minds generally go to some sensation like google or apple. but just 50 miles from silicon valley is the sacramento san joaquin valley. the valley where fortunes were made long before the arrival of microchips and semi-conductors. the farm roberto ran, worth tens of millions of dollars. all going to just one extended family. the moores. they were very, very private. reporter: this is mary. part of the greater moore clan. her family, like many of the big farming families around here, keeps its wealth private, too. i knew that there was money there. but they didn t flaunt it in any way. and you weren t told about it. you just knew that it was there.