you're watching bbc news. i'm rich preston. provisional clinical trials of a new experimental drug for severe covid suggests it cuts the risk of hospitalisation or death by about half if authorised by regulators the new drug, which is a pill, would be the first oral antiviral medication for covid—19. after the murder of sarah everard, the british prime minister has urged the public to trust the police despite the revelation her killer was a serving officer. borisjohnson said the government was examining how the criminaljustice system could be improved to better handle cases of violence against women. and the volcano that has been erupting for over a week on the spanish island of la palma is still spewing out two new streams of lava.

now on bbc news, time for click. this week, where all about genetics. should your dna decide your dinner? how does it shape your personality? and can it be used to track down the murderer? it's the most personal data that you own. it literally defines you. it is your dna. ever since the human gino was

decoded, researchers have been peering deeper into what makes us, us. and more and more companies have been able to build services around what they found so far. here is what lara has to say on the subject. it’s has to say on the sub'ect. it's not has to say on the subject. it�*s not disgusting, it's science. has to say on the subject. it's not disgusting, it's science. i | not disgusting, it's science. i think it's both, actually. i look forward to finding out what has got lara spitting that is later. but first... a story that will make your blood run cold. i in iceland, revisiting the freezers at decode genetics in reykjavik, where robots working in temperatures of —26 celsius look after the blood of iceland. over the last quarter of a century, icelanders have donated nearly 2 million samples, all in the name of genetic research. if you want to know what —26 celsius feels

like, it's very painful on the ears, you really don't feel like breathing very hard at all, and weirdly, my nostril has are freezing up. every time i do not they are cracking. iceland has been scrupulously recording ancestry records for hundreds of years, so it kind of makes sense that it is also now at the forefront of research to try and identify the specific genes responsible for particular genetic diseases. what is amazing is the foresight. they gathered a lot of these blood samples before the science became possible to do the things they are now doing. so by gathering it and keeping it for 20 years, they can go back to be older blood samples, if they have new research techniques available. by research techniques available. by doing this, they have been able to identify genetic variations associated with many kinds of cancers, and they are now even able to estimate how long you have left to live

based on levels of particular proteins in your blood. the other something about coming out of the temperature into normal temperature is what happens on cold glass. condensation. lots and lots of condensation. and it doesn't stop forming. so that's it. the camera is written offer about an hour now. and a bit later, once we've have dried off and warmed up, i am going to blow your mind with the discovery researchers you have made that links your body shape to the way your mind works. in the meantime, in the us, james clayton has been uncovering a different way in which ancestry data and dna is now being combined to solve murders. the

suburbs of fort worth and texas are quiet, sleepy. i'm here to visit the brother of carla walker, a teenager who was abducted and brutally murdered in 1974, overfour abducted and brutally murdered in 1974, over four decades ago. i have memories, especially of carla, sitting out here and talking to girlfriends. she and my sister cindy shared this large room on the second floor. and that's where she lived when she was abducted? that and that's where she lived when she was abducted?— she was abducted? that is correct. — she was abducted? that is correct, yes. _ she was abducted? that is correct, yes. her- she was abducted? that is correct, yes. her youngerl correct, yes. her younger brother — correct, yes. her younger brotherjim _ correct, yes. her younger brotherjim remembers i correct, yes. her younger. brotherjim remembers the correct, yes. her younger- brotherjim remembers the day clearly. brotherjim remembers the day clearl . . . . brotherjim remembers the day clearl . ., ., ., , , clearly. carla had her pretty dress on — clearly. carla had her pretty dress on and _ clearly. carla had her pretty dress on and rodney - clearly. carla had her pretty dress on and rodney was i clearly. carla had her pretty - dress on and rodney was looking quite nice in a suit. and we took pictures in front of the fireplace and off they went. we searched for the three days, we searched for the three days, we searched and searched. hundreds

and hundreds of law enforcement, probably near a thousand volunteers were searching everywhere. and i remember a news reporter coming to the house and saying, mr walker, what are your feelings now that they found your daughter dead? that was the first we heard about it. carla was severely beaten in the face. brutally raped. and she was choked to death. for over 40 years, carla's has remained unsolved, one of an estimated 200,000 cold case murders in the us.— estimated 200,000 cold case murders in the us. murders that u . murders in the us. murders that u- until murders in the us. murders that up until now. — murders in the us. murders that up until now, we _ murders in the us. murders that up until now, we thought - murders in the us. murders that up until now, we thought would | up until now, we thought would never be solved. irate up until now, we thought would never be solved.— never be solved. we had a lot of really wonderful _ never be solved. we had a lot| of really wonderful detectives, working on it, trying to move it forward, but, you know, four decades. 44 years before it really got moving again. the

breakthrough _ really got moving again. the breakthrough came not in carla's case but a case in 2018 on the west coast of america, a stunning investigation that threatens to revolutionise cold case murders across america using ancestry websites. the golden state _ using ancestry websites. tue: golden state killer... using ancestry websites. the golden state killer... the . golden state killer... the golden state killer... the golden state _ golden state killer. .. the golden state killer- golden state killer... the golden state killer was i golden state killer... the golden state killer was a serial murder and rapist that terrorised california in the late 1970s and early 1980s. the police had plenty of dna of the killer, however, it didn't match to any dna profiles and the fbi's database. one enterprising officer decided to run the dna found at the murder scenes against dna collected by an ancestry website. these sites are usually designed for people to find genetic relatives through dna links, but the police realised that if they put the killer's dna into they put the killer's dna into the database they might be able to find the murderer�*s relatives, a crucial clue. most

ancestry websites don't allow checks, but a few do. we website the police chose to use was a company called genmatch. so effectively, what they are doing is building family trees, so you have to build back far enough until you reach what they call most recent common ancestor, and then figure out the trees came together and then build forward from there. so by doing that, you are able to zero in on who the potential suspect is. to zero in on who the potential suspect is-_ suspect is. the capture of the golden state _ suspect is. the capture of the golden state killer— suspect is. the capture of the golden state killer was - suspect is. the capture of the golden state killer was a - suspect is. the capture of the | golden state killer was a proof of concept moment. the technique works. so could it be used to solve carla's case? you want to find _ used to solve carla's case? you want to find hits _ used to solve carla's case? you want to find hits that _ used to solve carla's case? tm. want to find hits that are within third cousins to make the case tractable. so we definitely had some that were within the third cousin range. othram was founded shortly after the golden state killer

was identified, with a mission to solve unsolvable cases. the company ceo, david middleton, says the first step in the process to clean up pdf —— dna, which is often degraded. in carla's case it was more than 40 years old. the company that sequences that dna, looking at thousands of distinctive markers on the gino. and in the traditional _ markers on the gino. and in the traditional forensic _ markers on the gino. and in the traditional forensic dna - traditional forensic dna testing framework, there is about 20 of these positions in the dna that you are measuring, and that information can be used to confirm that you are at a crime scene or that someone closely related to you as a sibling, parent or child is at a crime scene. that is the extent of what you can do with 20 markers. what we do our othram is look at tens of thousands to hundreds of thousands to hundreds of thousands of markers, and with that information we can detect more distant relationships. every time you test for dna you lose a bit of the sample and process. in carla's case, there was little of the killer's dna left. it was likely this was the last roll of the dice. irate

the last roll of the dice. we had to ask _ the last roll of the dice. - had to ask ourselves, have we seen enough dna that is of this kind of quality and property to really feel confident that there is a good chance we will have a positive outcome? otherwise we don't want to do it, because when you test dna you are consuming it, and so you are consuming it, and so you are consuming it, and so you are destroying evidence. once they'd sequenced to killer's dna they run it through several genealogy websites. from there, they created a family tree of the killer. and then began to look for possible suspects. the right age, male, who lived in texas at the time of the murder. they developed a theory that the dna found out to be man called glenn mccurley, a man called glenn mccurley, a man who lived close to carla, a man who lived close to carla, a man who lived close to carla, a man who had previously been a suspect. t man who had previously been a susect. ~' ., man who had previously been a susect. ~ ., ., ., man who had previously been a susect. ~' ., . ., ., suspect. i know that he had had to drive up _ suspect. i know that he had had to drive up and _ suspect. i know that he had had to drive up and down _ suspect. i know that he had had to drive up and down the - suspect. i know that he had had to drive up and down the road i to drive up and down the road in front of this house thousands of times, probably had even stopped here, they

knew who it was, but they had to do their due diligence as law enforcement to confirm, and thatis law enforcement to confirm, and that is what they did and about two weeks later i got a phone call, we know exactly who it is, we are going to be arresting him.- is, we are going to be arresting him. last month, mccurley — arresting him. last month, mccurley pleaded - arresting him. last month, mccurley pleaded guilty . arresting him. last month, mccurley pleaded guilty to | arresting him. last month, . mccurley pleaded guilty to the murder of carla walker. some people, however, simply don't believe that ethically this technique should be used, worried they are opening up people's dna to law enforcement, people who are not known criminals, could have worrying consequences. genetics isn't 'ust worrying consequences. genetics isn'tjust any _ worrying consequences. genetics isn'tjust any old _ worrying consequences. genetics isn'tjust any old tool— worrying consequences. genetics isn'tjust any old tool for- worrying consequences. genetics isn'tjust any old tool for law - isn'tjust any old tool for law enforcement. it is a particular tool, it is not like a phone number that you just change when you get too many spam calls, or even a social security company —— number you might have reissued if somebody takes yours. it is a technology thatis takes yours. it is a technology that is in its infancy. we don't know yet what it will tell us, how well it will tell

us things about people. the big criticism of _ us things about people. the big criticism of this _ us things about people. the big criticism of this technology - us things about people. the big criticism of this technology is i criticism of this technology is around consent. so after i get my dna test that i can go on to gedmatch and i can upload my raw dna files did websites. but here is the problem with that. i share dna with my relatives, critics argue that once i uploaded my dna and agreed to law enforcement checks, i am by association also opting in my entire extended family. and using my dna, the police cancelling hundreds, even thousands of my genetic relatives to a crime, potentially none whom have consented to be on a database used by the police. t consented to be on a database used by the police.— used by the police. i think the thing about— used by the police. i think the thing about people _ used by the police. i think the thing about people have - used by the police. i think the thing about people have to i used by the police. i think the i thing about people have to make their mind up, in that he had to competing priorities here. the first priority is, you have an absolute right to privacy. but on the same token you have a competing priority, which is, we have a right to not get murdered and raped. what amount

of privacy are you willing to give up versus getting, you know, the increased safety and society? know, the increased safety and socie ? ~ ., ., ., know, the increased safety and socie ?~ ., ., ., society? we hear about a zero rate, we society? we hear about a zero rate. we are — society? we hear about a zero rate, we are about _ society? we hear about a zero rate, we are about zero - society? we hear about a zero | rate, we are about zero notice, but less — rate, we are about zero notice, but less prominent are going to be cases— but less prominent are going to be cases they might be more controversy about, whether it is using — controversy about, whether it is using it _ controversy about, whether it is using it in an immigration context— is using it in an immigration context a _ is using it in an immigration context a user can —— using it ina— context a user can —— using it in a less— context a user can —— using it in a less serious crime contacts. we structure our society— contacts. we structure our society with suspicion based reason — society with suspicion based reason to intrude on people's privacy— reason to intrude on people's privacy because we felt as a community that was the right thing — community that was the right thing to— community that was the right thing to do, even when it means that occasionally some crimes io that occasionally some crimes go unsolved. i think it is incredibly hard to say this. i don't — incredibly hard to say this. i don't mean to minimise will be dismissive _ don't mean to minimise will be dismissive of the claim. but we don't _ dismissive of the claim. but we don't make policies about the civil liberties of our whole society _ civil liberties of our whole society based on the personal feelings— society based on the personal feelings of single victims of the needs of single victims. after— the needs of single victims. after the apprehension and arrest was made, i started to feel peace. p—e—a—c—e. i didn't

realise, for almost four and a half decades, i had been geared up half decades, i had been geared up for a fight. we're not going to go away, we're going to find you, were not going away. and thank god that day came. hello. it's time thank god that day came. hello. it's time for _ thank god that day came. hello. it's time for your _ thank god that day came. hello. it's time for your weekly - thank god that day came. hello. it's time for your weekly tech i it's time for your weekly tech news round—up. it was the week google claimed it is bing's most popular search term, while appealing against anti—trust fines from the european union. youtube is now removing videos containing vaccine misinformation for all currently approved vaccines, not just covid—19. currently approved vaccines, notjust covid—19. and california has passed a new law to stop workers being fired if they are not meeting productivity targets set by algorithms. it has ideas for a long time, now it has eyes. it is amazon's new robot, astro. the family seems robot can be controlled remotely and features a periscope to see in high places. however, some critics have raised prissy

concerns. facebook has delayed releasing additional instrument for children up to parents and experts raised safety concerns. this comes as recent research has increasingly shown how use of social media can affect the mental health of young people with many under 13s already using instagram. and finally, as china announces a complete ban on cryptocurrency, one hamster is busy raking in profits from its cage. mr gox is currently outperforming the s&p 500, with a portfolio up by nearly 24% sincejune. the german road and's nearly 24% since june. the german road and's crypto rigged office lets him perform exercises that execute trades. it gives a whole new meaning to wheeling and dealing. we have seen the power dna can have in solving crime and the ethical dilemmas around that, yet many are willing to give up a little

saliva to get to know themselves better. dna nudge assesses customers' propensity to certain conditions, guiding them away from the food that would also increase their risk. if you've got the genes for hypertension, then salt is something you should be careful of. if you've got the genes for type 2 diabetes, saturated fat and sugar are your problem. so what we do is we relate those conditions or those genetic risks to those macro nutrients in food. ., ., ., , in food. time to hand over my dna, which — in food. time to hand over my dna, which i _ in food. time to hand over my dna, which i have _ in food. time to hand over my dna, which i have been - in food. time to hand over my l dna, which i have been assured will be destroyed straight after it's been analysed. fight! after it's been analysed. and reload that _ after it's been analysed. and reload that into _ after it's been analysed. and reload that into the - after it's been analysed. situc reload that into the cartridge, and then we load the cartridge into one of the nudge boxes. tt into one of the nudge boxes. it looks like a coffee machine. an hour later, i have my results. it looks like a really shouldn't be having much assault or saturated fat.

danger from salt medium, calories dangerfrom salt medium, calories medium. these are not the result i expected. chris, i am glad you are at hand. obviously you don't have the obesity risk, but saturated fat and salt are indicators much more of cardiovascular, so obviously these are things that you can't see on the surface. my you can't see on the surface. my data is then loaded onto a pod that can be worn to help track my exercise and shape my shopping habits. you can scan the food to see if you can eat them. i shouldn't have that, i can also try it on here. which are also salted peanuts, but it says they are fine to have. 0.3 grams per serving there, 0.9 grams per serving there, 0.9 grams per serving there. almost double as much salt. i would not have expected that. here you have the same brand of peanut butter, and just changing from one to the other could apparently save you this much saturated fat over the course of the year. although of course of the year. although of course this does all depend on how much you are consuming. so obviously lifestyle does have a

big effect on this. what is the percentage balance, then, do you think, between genetics and lifestyle? t you think, between genetics and lifes le? ., , lifestyle? i would say it is rou . hl lifestyle? i would say it is roughly 30-70. _ lifestyle? i would say it is roughly 30-70. dna - lifestyle? i would say it is roughly 30-70. dna is i lifestyle? i would say it is - roughly 30-70. dna is around roughly 30—70. dna is around 30, lifestyle is around 70. dnanudge is not the only company in the dna attrition and fitness space, and many post kits home. this woman tried one after reacting to dairy and bread.— tried one after reacting to dairy and bread. once i did the test i dairy and bread. once i did the test i saw _ dairy and bread. once i did the test i saw that _ dairy and bread. once i did the test i saw that i _ dairy and bread. once i did the test i saw that i am _ dairy and bread. once i did the test i saw that i am actually i test i saw that i am actually lactose intolerant, which made sense, and also i am at a slight increase risk for coeliac disease. just the acknowledgement that there was that increase risk for me pushed me to acknowledging that step of reducing the amount of wheat that i eat. but step of reducing the amount of wheat that i eat.— wheat that i eat. but neda gharani. — wheat that i eat. but neda gharani, who _ wheat that i eat. but neda gharani, who is _ wheat that i eat. but neda gharani, who is also - wheat that i eat. but neda gharani, who is also a - wheat that i eat. but neda - gharani, who is also a research scientist, raised red flags about simplified genetic reports. tt about simplified genetic re orts. , about simplified genetic reorts. , , ., ., , reports. it is understandable for the general _ reports. it is understandable for the general population, l reports. it is understandable i for the general population, but maybe someone who doesn't

really understand genetics may take the results as being — having a greater effect than they actually do. t having a greater effect than they actually do.— they actually do. i took the test myself, _ they actually do. i took the test myself, as _ they actually do. i took the test myself, as well, - they actually do. i took the test myself, as well, but i they actually do. i took the i test myself, as well, but the diet recommendations contradicted those of dnanudge, so a little confused, i took a trip to a nutrition genetic slab. what do you keep in the fridge? tt slab. what do you keep in the fridre? , ., ., fridge? it is full of saliva. it is fridge? it is full of saliva. it is full _ fridge? it is full of saliva. it is full of _ fridge? it is full of saliva. it is full of saliva. - fridge? it is full of saliva. it is full of saliva. this i it is full of saliva. this scientist specialises in nutrition genomics here, and instead of offering me a coffee, decided to test my jeans as to whether i should have one or not.— jeans as to whether i should have one or not. can have the ositive have one or not. can have the positive sample _ have one or not. can have the positive sample and _ have one or not. can have the positive sample and just - have one or not. can have the l positive sample and just return it back to me. tt positive sample and 'ust return it back to meh positive sample and 'ust return it back to me._ it back to me. it takes longer than you _ it back to me. it takes longer than you would _ it back to me. it takes longer than you would think - it back to me. it takes longer than you would think to - it back to me. it takes longer than you would think to fill. it back to me. it takes longer than you would think to fill a | than you would think to fill a container with saliva. have only got to get it up to there. the problem is not this part. we can do this part quite well. the challenge is to find an area that is meaningful and we have a lot of science behind it, so there is no consensus as

to which dna areas we need to analyse, so company a may have their own genes that they believe are the most important ones and company be may have a different set of genes. we need to be able to communicate possibilities and probabilities to the public, and that is not always an easy thing to do. even when scientists do agree on genes and their impact, or data is needed for a full picture. data is needed for a full picture-— picture. genetics can actually be ruite picture. genetics can actually be quite meaningful- picture. genetics can actually be quite meaningful if- picture. genetics can actually be quite meaningful if you i be quite meaningful if you combine it with other parameters of a person — their individual dietary intake, lifestyle, physical activities, sleep patterns and whatnot. if you just use genetics, it is not going to work. but while our dna can't _ not going to work. but while our dna can't offer- not going to work. but while our dna can't offer every i our dna can't offer every answer, at least the doctor later confirmed that i am free to drink coffee while i am mull over the need for any diet change — or not. i tell you, she should never have given it

up she should never have given it up anyway. back at dk genetics in iceland, the founder has been looking at a similar and possibly controversial topic — how our genes shape our bodies, our minds and our personalities. t our minds and our personalities. our minds and our ersonalities. .. , ., personalities. i can tell you how we can _ personalities. i can tell you how we can use _ personalities. i can tell you how we can use genetics i personalities. i can tell you j how we can use genetics to explore, innovate the nature of man. , . ,. . man. his most recent scientific -a er man. his most recent scientific paper has _ man. his most recent scientific paper has been _ man. his most recent scientific paper has been looking - man. his most recent scientific paper has been looking at - man. his most recent scientific paper has been looking at how| paper has been looking at how that relates to one of the developed world's biggest health problems. tt developed world's biggest health problems.- developed world's biggest health problems. if there is one condition _ health problems. if there is one condition that - health problems. if there is i one condition that predisposes us to more diseases than anything else, it is obesity. obesity predisposes to heart failure, to liver diseases, to osteoarthritis, to type 2 diabetes. it predisposes us to an incredible number of cancer diseases. ., an incredible number of cancer diseases-— an incredible number of cancer diseases. ., ., diseases. now, some people are genetically _ diseases. now, some people are genetically predisposed - diseases. now, some people are genetically predisposed to - genetically predisposed to become obese. their genetic make up means that they are just more likely to overeat.

not all of these people do become obese, it is just more likely. and, of the people who don't have those genes, well, some of those will also become obese for other reasons. so decode set about trying to answer the question: which is it that makes these diseases more likely? is it obesity itself or is it the genetic tendency for obesity? and it turns out that you are not simply cursed by your genes to get ill. simply cursed by your genes to net ill. �* . simply cursed by your genes to ret ill. ~ . . get ill. and that genetic tendency _ get ill. and that genetic tendency has _ get ill. and that genetic tendency has no - get ill. and that genetic tendency has no impactj get ill. and that genetic i tendency has no impact on get ill. and that genetic - tendency has no impact on these diseases, so it is purely the obesity itself that predisposes us to disease. and then we asked the question, what is it, then, that this genetic tendency has an impact on. which part of our biology, which part of our being, is being influenced by this genetic score for obesity? and indeed, we showed that a greater genetic tendency to become obese is, the worse you

perform on all cancer tests of cognitive function. your verbal iq is less, your trail making testis iq is less, your trail making test is worse, your education is less. obesity itself has no impact on cognitive function, so you don't become stupid by becoming obese. but the genetic aberration that made you lose control of eating behaviour has an impact on many other functions of your brain. 50 functions of your brain. so obesity makes you susceptible to other diseases regardless of your genes, but the gene which makes obesity more likely does affect your intelligence. the researchers then looked at the data from the other direction and asked: does your personality, and specifically your ability to solve problems, tell you anything about how your physical body might develop? and here they found that the better your visual and spatial ability, the more

likely you are to have the genetic tendency for obesity — and all those obesity —related diseases. you are also less likely to be curious and creative, but also less likely to suffer from psychiatric conditions like schizophrenia. however, if you score higher on verbal ability, you will have less risk of obesity and related diseases. you are more likely to be curious and creative, but also you will have a greater risk of schizophrenia.- have a greater risk of schizophrenia. and what fascinates _ schizophrenia. and what fascinates me _ schizophrenia. and what fascinates me about - schizophrenia. and whatj fascinates me about this schizophrenia. and what i fascinates me about this is that the way in which you are genetically hardwired to solve problems has an impact on the composition of your body. just rive me composition of your body. just give me a _ composition of your body. just give me a minute. _ composition of your body. just give me a minute. i _ composition of your body. just give me a minute. lam composition of your body. just give me a minute. i am working it out for myself at the moment. i hope we all are. it out for myself at the moment. i hope we allare. i know where i am on that, or at

least i think i am. oh, my god. well. amazing the secrets that our bodies can hold. and that's it for this week's show. as ever, you can keep up with the team throughout the week on social media. find us on youtube, instagram, facebook and twitter @bbcclick, and of course we will be back next week. thanks for watching, goodbye. more rain and wind on the way. it is autumn, after all, but for some of us saturday may end up being a bit of a write—off. and in fact, over the next few days the weather will remain very unsettled — spells of heavy rain, gales at times and even the possibility of some travel disruption. and the atlantic is looking a lot more vigorous

in its weather patterns in the last few days. we're seeing low pressures forming, propelled by a powerful jet stream. and you can see a low pressure anchored just to the north—west of the uk, another one to the south forming, and that's the one that's going to bring the particularly wet spell of weather on saturday. so, through the early hours, we're already expecting some rain across western areas of the uk. but ahead of that there is plenty of clear, dry weather, so eastern and central areas may actually wake up to some sunshine. that sunshine may even last until mid—morning or perhaps early afternoon in the extreme east, but very quickly those clouds will increase and we've got some particularly wet weather there for the south and the south—east and some strong winds too. further north—west in the afternoon, it's going to be more of a mixed bag, so for belfast and glasgow i think some sunny spells certainly in the forecast. so here's saturday night. that low pressure and its extensive rain front moves out

of the way, and then the weather opens up a little bitjust in time for the marathons on sunday. so for the london marathon, expect some sunshine, the marathon in belfast as well. nowhere will be completely dry. in fact showers are expected on sunday, with a keen westerly breeze, but at least we're not going to have that really prolonged rain. now, the temperatures both on saturday and sunday will be around the mid—teens — not that it'll feel like it because of the strength of the wind and also the prolonged rain. and then, on monday, the next area of low pressure heads our way. so early on monday there could be some sunshine around, but certainly by monday afternoon and evening we'll start to see the next area of wet weather approaching south—western parts of the uk. so a very unsettled spell of weather over the next few days — quite typical for october, really. here's the summary. you can see a lot of rain shower icons there, temperatures mostly in the mid—teens. there is just a hint that, sometime later next week, things will settle down at least for a bit. bye— bye.

it gives a whole new meaning to wheeling and dealing. welcome to bbc news. i'm rich preston. ourtop welcome to bbc news. i'm rich preston. our top stories. optimism from health experts as a pill developed to treat severe coronavirus reports positive trial results that could halve the chances of dying. after the murder of sarah everard by a serving police officer, london's metropolitan police tries to regain the public trust. two new streams of lava pose a further threat of destruction as the la palma volcano forces thousands to flee.— as the la palma volcano forces thousands to flee. nobody knows how much my _ thousands to flee. nobody knows how much my mother— thousands to flee. nobody knows how much my mother is - thousands to flee. nobody knows how much my mother is going i thousands to flee. nobody knows how much my mother is going to| how much my mother is going to flow into the sea. there is no sign of this ending anytime soon. �* �* , . .