that's where you start your search looking in the wrong place sam wasser is the director of the centerfor conservation biology at the university of washington. when it comes to solving the mysteries of the illegal trade wasser has created a coalition of scientists virtual detectives using techniques in d.n.a. structure and from ivory. genetic mapping through dung sampling and radiocarbon dating this multipronged approach attacks a criminal enterprise that's brought the majestic african elephant to the brink of extinction and there's probably only $450000.00 elephants left so the whole focus of our lab is to really try to use d.n.a. assignment of large overseas or. singapore 2000 to 6 and a half tons of ivory seeds to the largest in the country's history roughly 650 elephants were killed for this haul of ivory. but where in africa did the ivory originate from they assume this much ivory must come from multiple sources authorities send samples to washers lab for analysis right now from anywhere in africa we can assign a seizure of ivory closer than 300 kilometers to where it came from wa

when it comes to solving the mysteries of the illegal trade wasser has created a coalition of scientistsvirtual detectives using techniques. indian ache struction from ivory. genetic mapping through dung sampling and radiocarbon dating this multipronged approach attacks a criminal enterprise that's brought the majestic african elephant to the brink of extinction and there's probably only $450000.00 elephants left so the whole focus of our lab is to really try to use d.n.a. assignment of large overseas or. singapore 2000 to 6 and a half tons of ivory seeds to the largest in the country's history roughly 650 elephants were killed for this haul of ivory. but where in africa did the ivory originate from they assume this much ivory must come from multiple sources authorities send samples to washers lab for analysis right now from anywhere in africa we can assign a seizure of ivory closer than 300 kilometers to where it came from wasser and his team get to work the 1st step is to prepare the samples of seized ivory. we cut off a piece of the ivory and then leave we do is we stick that piece in

when it comes to solving the mysteries of the illegal trade wasser has created a coalition of scientistsvirtual detectives using techniques in d.n.a. from ivory. genetic mapping through dung sampling and radiocarbon dating this multipronged approach attacks a criminal enterprise that's brought the majestic african elephant to the brink of extinction and there's probably only $450000.00 elephants left so the whole focus of our lab is to really try to use d.n.a. assignment of large. singapore 2000 to 6 and a half tons of ivory seized the largest in the country's history roughly 650 elephants were killed for this haul of ivory. but where in africa did the ivory originate from they assume this much ivory must come from multiple sources authorities sense to wasser is lab for analysis right now. from anywhere in africa we can assign a seizure of ivory closer than 300 kilometers to where it came from washer and his team get to work the 1st step is to prepare the samples of seized ivory. we cut off a piece of the ivory and then leave we do is we stick that piece inside a plastic tube with a magn

because that's where you start your search looking in the wrong place sam wasser is the director of thecenter for conservation biology at the university of washington. when it comes to solving the mysteries of the illegal trade wasser has created a coalition of scientists virtual detectives using techniques indian extract from ivory. genetic mapping through dung sampling and radiocarbon dating this multipronged approach attacks a criminal enterprise that's brought the majestic african elephant to the brink of extinction and there's probably only $450000.00 elephants left so the whole focus of our lab is to really try to use d.n.a. assignment of large overseas or. singapore 2000 to 6 and a half tons of ivory seized the largest in the country's history roughly 650 elephants were killed for this haul of ivory. but where in africa did the ivory originate from they assume this much ivory must come from multiple sources authorities send samples to washers lab for analysis right now from anywhere in africa we can assign a seizure of ivory closer than 300 kilometers to where it came from wasser

. >> reporter: she thought she wasser corresponding with a u.s. service member but the picture and dating profile turned out to be a scam. using a photograph off a local sports caster who had no idea. the hunt is on for six more defendants believed to be on the run now facing serious charge. >> some lost hundreds of thousands in this way and some of the victims of the romance and other online frauds were targeted specifically because they were elderly or others with vulnerable message to be wear and to scammers that law is coming for them >>> president trump is heading to france tonight for this weekend's g7 summit. he'll talk trade, climate change and security with the world leaders. and the president floated the ideas of readmitting russia to the group. >> no, it didn't because the president walked out they're hopping to avoid that this year but this year's there's even more tension especially between president trump and the european nations over climate change, over airan, trades the president said the other day all we have to do to manipulate

what wasser this intention to bring about promises for brazil. >> researchers say the fires have continued despite brazil not being in a drought. report said that they could get worse as the amazon enters it's dry season. >>> the bay area is hosting more than a dozen democratic candidates this weekend. the dnc holding its summer meeting in san francisco. how delegates are watching which candidates will and won't be there. >> and keeping bart clean. it's . how bart said it's making progress in making the stations cleaner. lean . >> good morning. we have traffic that is -- mostly doing okay but some of these commutes little robust here at the bay bridge. >> and everybody is up and at them. it's a little warm. we have a slightly cooler day on tap. we will talk about your five day forecast when we come back. stay with us. . >>> bernie sanders will be in northern california. he is expected to tour the town of paradise today and meet with school kids. also he is planning rallies at noon in chico and at six tonight in sacramento. tomorrow he will be in san francisco. >>> school administrators in

house went to court and pleaded guilty now you know and collaborator turi serling have teamed up with wasser to apply this technique to investigate trends in the international trade in illegal ivory since the international ban african countries have been stockpiling confiscated ivory occasionally they destroy some of it but much of it remains sitting in government warehouses so they have huge stockpiles on the order of 100 or 120 tons in some of these nations there so they're sitting on this ivory waiting for the day that the international market opens. its current poaching hotspots are shut down the next major source for ivory could be the stockpiles and radiocarbon dating would help confirm it to what extent do you wrestle with despair at the situation and to what extent do you embrace hope and there have been some seizures where i got to say you know when we pulled them out and started rinsing in often the blood was pouring out that we were just sitting there in tears i mean you know that that has happened but you know you get. used to it and and then you start getting these breakthroughs

said it wasser own yous. >> there's no ideologist we're calling. >> his rifle was purchased legally in nevada. a search of his car turned up a second gun and ammunition was located nearby. he did not appear to have an accomplish. >> we're awaiting the arrival have behave youral unit who'll look at what we have here and happen us understand the mind- set and potential ideology. >> they people died. 6-year-old romero, 13-year-old salazar and herbie. one more patient was discharged from the hospital. four more remain in the hospital. two victims are at stanford and one at regional medical center. >> emotional health is responsibility as physical health. to get to the services and get to help you need will help you recover from this event. >> those community support meetings will be at community solutions and rebecca children's services at gilroy, between 6:00 and 7:30 tonight. >>> the coverage continues on the gilroy shooting, coming up, we hear from a woman who was at the festival who survivedded the las vegas mass shooting. we posted more on the web site and social media pages as well.

. >> the best part wasser ber ni would rest in peace. >> narcy said she was innocent from all the charges case with some big assists from may abad. now her s'more gone and will spend the rest of her life in prison. >> she didn't see what she had in front of her. she had her daughter. she had two grand kids that loved her, and now she has nothing. >> and greed and some amount of jealousy presumably is driving this? >> absolutely. no matter what, i love my mother. she was my mother. she had grand kids that adored her and would have done anything for her, and they did. and she just threw it all away. threw it all away for money. >> if you go to miami beach, the hotel is there all spruced up with a new lease on life and may has a fresh outlook on the rest of her life. in 2011 may welcomed a new little guy in her life. a son. she named him ben after the lost prince. the name sake he never got to meet. >> that's all for this edition of dateline extra. i'm craig melvin. thank you for watching. >>> i'm really sorry. i understand why they hate me. i live with those same feelings about myself every