abc's alec mark quart reports from the tuscany. >> reporter: a mystery in the heart of tuscany. the state department confirming the death of american ashley olsen, found in her studio apartment. investigators say she had bruises and scratches on her neck. police, scouring the building in this upscale florence neighborhood. italian media reported she had a fight with her boyfriend a few days ago. after not hearing from her, he asked the landlord to let him in and found the body. he and seral of olsen's friends have been questioned. so far, authorities say they have no suspects. >> i can't imagine a person who she's a gentle, a kind, a beautiful, friendly, lovely girl. and it's an awful shock. we've got a great community here of people, and everyone loved her. >> reporter: the bubbly 35-year-old from florida seen here modeling arrived in florence in 2012, reportedly to join her father and work in fashion. olsen was known in her neighborhood as the american often seen with her beloved beagle scout. her grandmother telling abc news, our lives have changed forever. she was our loving

indulge in endless chianti and fine italian cuisine in tuscany, italy, at the charming agriturismo marciano. stroll through the beautiful vineyards and discover the tuscan countryside just minutes from the city of siena. airfare provided by bedandbreakfast.com. to reserve your next getaway at over 14,000 bed & breakfasts worldwide, global site for finding bed & breakfast properties at bedandbreakfast.com. wow. once again, $9,985. nice going. and we'll take a break and play some more right after this. stood strong... ...to get the job done. hillary clinton. ...and spoke out ...went toe to toe with the drug and insurance companies spent millions against her... until eight million children got health care. i've never been called a quitter and i won't quit on you. to do the toughest job in the world. i approve this message. tonight's bed & breakfast week show is brought to you by the following... ancestry -- where you can bring your family's story to life. idries: when i went onto ancestry, i just put in the name of my parents and my grandparents. and as soon as i did that, literally, it was li

. >> reporter: tonight, a mystery in the heart of tuscany. american ashley olson found dead in her studio apartment. investigators say she had bruises and scratches on her neck. police, scouring the building in this upscale florence neighborhood. italian media reported she had a fight with her boyfriend a few days ago. after not hearing from her, he asked the landlord to let him in and found the body. he and several of her friends have been questioned. have no suspects. >> i can't imagine a person who would hurt her. she's a gentle, a kind, a beautiful friend and a lovely girl. and it's an awful shock. we've got a great community here of people, and everyone loved her. >> reporter: the bubbly 35-year-old from florida seen here modeling arrived in florence in 2012, reportedly to join her father and work in fashion. olsen was known in her neighborhood with an american often seen with her beloved beagle scout, her social media accounts filled with photos of the pair. the community here in florence is stunned by olsen's death. one friend said she

>> yes. >> reporter: in tuscany, cops found 42,000 gallons of run of as topnotch. the score could have been $5 million. so everything, olive oil, tomatoes, milk. butter, bread, a wide range of different foods. >> reporter: journalist tom muller lived in italy for 20 years. and speaks routinely with investigators and food >> reporter: where along the food chain does the mafia get involved? >> from harvesting, they impose prices to the transportation and there is mafia involvement in supermarkets as well. so certain areas they have infiltrated the food chain from the farm to the fork. >> reporter: muller wrote about olive oil fraud in 2007 for "the new yorker" magazine. >> you are getting lower grade olive oil blended with extra virgin oil, deodorized oil, blend it with oil to give it color and flavor. sell it as extra virgin olive oil. >> reporter: extra virgin must come from the first press and free of additives, fruity, the best can sell for $50 a gallon. but a fake costs $7 to make. the profit margin can be three times better than cocaine. >> i would like to show

. >> reporter: tonight a mystery in the heart of tuscany. the state department confirming the death of american ashley apartment. she had bruises and scratches on her neck. police scouring the building. italian media reported she had a days ago. asked the landlord to let him in and found the body. he and several of her friends have been questioned. so far authorities say they have no suspect. >> i can't imagine a person who would hurt her. she's a gentle, kind, a beautiful friendly, lovely girl. it's an awful shock. >> we've got a great community here of people and everyone loved her. >> reporter: the bubbly 35-year-old from florida seen her modelling arrived here in 2012 to join her father and work in fashion. olsen was known as the american often seen with her beloved beagle scout and her grandmother telling abc news our lives changed forever. she was our loving, smart and precious girl. the community here in florence is stunned by olsen's death. one of her friends saying she was fun, ground and had worked hard. italy's chief of police sai

>> whitaker: in tuscany, cops found 42,000 gallons of run-of- the-mill red that was going to be sold as top-notch brunello di montalcino. the score could have been $5 million. so this is everything-- olive oil, tomatoes... >> tom mueller: ...milk, butter, bread, a wide range of different foods. >> whitaker: journalist tom mueller has lived in italy for 20 years and speaks routinely with investigators and food producers. so, where along the food chain does the mafia get involved? >> mueller: from harvesting-- they impose their own workers, they impose prices-- to the transportation. and there's mafia involvement in supermarkets as well. so certain areas, they have really infiltrated the entire food chain from the farm to the fork. >> whitaker: mueller first wrote about olive oil fraud in 2007 for the "new yorker" magazine. >> mueller: you, in many cases, are getting lower grade olive oil that has been blended with some good extra virgin olive oil. deodorized oil. they blend it with some oil that has some character to give it a little color, a little flavor, and they sell that as extra