the bourdeau case faded away.got that called from reporter larry altman about the murder of larry risken. that was the first you heard she even had another husband. >> yeah. >> did he tell you how he died? >> he told me just how he got shot in the head, too. >> just like your brother? >> yeah. yeah. >> did you immediately think, oh, boy, she's done it again? >> yeah. i did. >> maybe now, hoped dennis, all the renewed interest in sonia might finally reignite the investigation into his brother's case. >> i thought, sonia was going to be hung from the highest tree and serve a lifetime behind bars. >> understandable, if naive. coming up -- >> had she been arrested, larry risken would be alive today. >> you looked into her past? >> oh yes, very sensibly. >> what other secrets might sonia be hiding? when "dateline" continues. (psst! psst!) ahhh! with flonase, allergies don't have to be scary. spray flonase sensimist daily for non-drowsy long lasting relief in a scent free, gentle mist. flonase all good. also, try our al

. - i'll--i'll stand outside the bourdeau dan. i'll tell all your customers that.jor source of carbon dioxide. - yes. it's the biggest one in the world. - no, not the biggest one in the world. - yes. - bovine flatulence? - yes, bigger than cars, bigger than anything else. - see, this is why we should eat meat. we're saving the planet; we're gonna kill these things. ♪ ♪ we're ripping a hole in the ozone layer. plus, it stinks. - you are a lost-- lost case. - [speaking french] [both speaking french] - what does she want? - she said she hopes you're very hungry, because... - uh-oh. - what's coming is serious. [light instrumental music] ♪ ♪ - farcante. i think that means "cannonball of goodness" in french, because it's a big, heavy, albeit yet thoroughly delicious loaf of potato, bacon, dried fruit, and cream slowly steamed in a bain-marie. ♪ ♪ this meal is a foreshadowing of the kind of light spa food that will become a regular feature of our time in the alp. - whoa. - whoa. - we have to finish that. - it's like a-- it's like a volcano. look at this. - you can put the