this is bbc world news, the headlines: 20 people have been killed by a gunman in a mass shooting in the us — 26 people have been injured. it happened in a busy store in the city of el paso near the us—mexico border. officials say the shooting could have been a hate crime — the gunman is thought to be a white nationalist after a racist manifesto was posted online before the attack. in the second shooting, 24—year—old connor betts is identified as the man who shot dead nine people in a city centre bar in dayton, ohio. he was killed by police. clashes have again broken out during democracy protests in hong kong. demonstrators threw rocks at the windows of a police station.

the police used tear gas to disperse the crowds. at 10pm, mishal husein will be here with a full round up of the days news. first on bbc news, our world tells the story of a south african journalist's attempts to save a family friend from drug addiction. this programme contains scenes some people may find disturbing. across south africa, communities are being decimated by a deadly narcotic known as nyaope. it goes straight into the blood, to your heart, to your lungs. this is a story of a drug epidemic fuelled by corruption. and one man's fight for redemption.

a drug epidemic is raging in townships across my country. nyaope is a highly addictive heroin—based narcotic, which sometimes contains hiv medication. it's often mixed with marijuana and smoked or injected. this drug is slowly eating away at south africa's first post—apartheid generation, and i want to find out why. my name is golden mtika, i'm a local crime reporter. i know the dangers of nyaope more than most. in the past six years, the drug has claimed the lives of two of my young nephews.

i've come to the old neighbourhood in search of answers. in the crowd, i spot one of my nephews' old friends. jesus came from a good home and was always immaculately dressed. i can't believe how far he has fallen. i would like to talk to him, but he's too far gone. seeing jesus has brought back painful memories. in the space of five years, i lost my twin nephews to nyaope. both of my nephews, were nyaope addicts. we tried our best to guide them to stop smoking this nyaope. at the end of the day,

they ended up losing their lives. this is where enoch and innocent have been laid to rest. i'm sitting here right on top of this grave, and i've got my two nephews laying here, who died for nothing. life is so cheap. the loss of my nephews has had a devastating effect on me and my family, but we are not alone. most families have been affected by nyaope. you only have to turn the radio on and tv, newspapers, you see stories of nyaope every day.

after what happened to my nephews, i am determined to helpjesus escape his addiction before he suffers the same fate. ifind him scavenging in an open sewer. like thousands of other addicts, he is desperate to buy his first fix of the day. he agrees to talk, but seems distracted. i need to finish rolling and start... ..and start lighting, you know, and start smoking. in the morning, it's hell... hell on earth. you feel like you are literally dying. like your intestines are being cut

by some razor blade. at some point, when you're like that, you end up doing some very awful things. is there anything you wouldn't do if you didn't get a fix? i would do literally everything. if it means i have to hurt somebody or go stab somebody, i would do it. how are you feeling? 0h, ifeel so relieved right now after having this pull. now i am relaxed, you know. but feeding his addiction is a constant challenge. is it hard to get nyaope in the township? simple. they're selling, they're selling, they're selling. there is no escape.

no escape. it's hard seeing just how lowjesus has fallen. but in the nightmare world of nyaope, you can always sink lower. as i discovered, some ofjesus' friends are going to potentially deadly extremes to feed their addiction. in search of a bigger hit, they're not only injected the drug but also share the needle. are you not scared of hiv? these guys are already taking one hell of a risk. but what i was about to see next was truly chilling. after injecting the nyaope, the addict draws his own blood back out into the syringe.

to make the hit go further, this mixture of blood and nyaope will then be injected by the others. what i am witnessing is sheer madness.

when i saw that — drawing blood from himself and injecting to the other one, it scared me most. my body was, like, you know, crumbling — he's going to inject with that syringe. that is suicide, that's a complete suicide for me. seeing jesus' friends risking their lives for nyaope has made me more determined than ever to try to save him. a few days later, the rehab centre has agreed to takejesus, and i go and try and find him again.

i find him at one of his regular spots, but it's not looking good — he's already smoking. i wonder if he will still feel the same about going into rehab. do you think you will miss this? jesus says his goodbyes. his resolve is strong. but i need to get him to the centre before his cravings begin.

the tenth commandment rehab centre in tembisa claims to have a success rate of over 70%. it runs a strict regime. jesus is looking tense. joseph is a former nyaope addict who mentors new arrivals.

joseph sitsjesus down and explains the centre's rules. he looks scared, but it's too late to back out. jesus has been addicted to nyaope for almost a decade. he will be kept under lock and key until he's clean. this programme may be his last hope for redemption. they sing. the next day, i return to see howjesus is doing.

but despite the cravings, jesus still seems determined. it's time for me to leavejesus. now he must fight his demons alone. i hope he can find the strength to beat nyaope. if he can, there's a chance he can rebuild his life and connect with his family again. thousands of young south africans are in exactly the same situation as jesus. but who are the shadowy people

responsible for flooding our townships with the drug? through my underworld contacts, i have managed to find a nyaope trafficker who is willing to talk to me, but he is suspicious. i've heard he is a key supplier to thousands of local nyaope dealers. ok, the stuff we have here, how long will it last for you? how much do you get? one township, ten kilos. i can't imagine the misery this is causing. how does it make you feel, when you look at one of the youths in the township who has lost hope in his life just because he is smoking this stuff?

all right, so this is basically for the sake of money? nyaope has long been illegal in south africa, so how can dealers like these operate so openly? how do you deal with the cops? all right, you just have to bribe them? how much would you give a cop? is it only the junior—level cops, or up to the higher rank? he is selling nyaope, and he doesn't care. what he cares about is money.

i have lost my two nephews through this nyaope. i think, for me, the government needs to come in very strongly and arrest each and every person who is dealing in nyaope, because they are killing our society. i have managed to find a cop who is prepared to talk about corrupt officers who are feeding off the drug trade. i am meeting him at a secret location. hello. hi, hi, hi, myfriend. i'm already around this area. 0k. he really sounds a bit nervous, but he has promised that he is coming.

we've disguised his identity to protect him. do you notice that nyaope is now very common in our streets, on almost every corner of our streets? yes, yes, most especially in our townships. there, there is a lot of nyaope. it's killing our country, our community, our children and our brothers. how frustrating is it to you? i'm trying to combat crime and protect members of the community, but some of our members, they are taking bribes from those who supply nyaope. how could the corruption be stopped? to stop corruption, arrest those police officers who is involved in crime. this cop is taking a big risk talking to me. it's very dangerous to cover up that story. they can kill me and also my family. thank you for speaking to me, and be safe.

thank you. you are welcome, my brother. the most disappointing thing about these police getting bribes from the dealers is that they're giving them the freedom to operate in our townships freely, and making drugs accessible to our children very easily. i want to find outjust how widespread the problem of corruption within the police force has become. a nyaope street dealer has agreed to wear a secret camera, but it's very risky. the cop sees him just after changing the shift, and they will drive around the township, seeing each and every dealer to collect money from them. it doesn't take long for a cop to take a bribe.

over the next four days, our cameras captured police officers repeatedly receiving bribes from a known drug dealer. we've obscured their faces to protect his identity. this is pretty obvious. a police van pulls in, and a dealer of nyaope comes with the police and tells them business is not good, but i will give you a cold drink. and in south african terms, cold drink means i will give you bribary. for the love of money, they just collect money and they leave these drug dealers to roam around in our streets, sell drugs freely. so, to me, this is not good. it's not good at all. not only to me, but to everyone else in our society. we put these allegations to the south african police service. in response, they said...

it has been six months since i leftjesus in rehab. we've been supporting his treatment, and i've heard he's now clean of nyaope. hi, jesus. hi, man. you're looking clean, man, you're looking very clean. very neat. you're looking... just look at you, man. i can't believe this is you. you're looking great, man. how has it been at the rehab? the hardest part was my first three days and the first week. those pains, those sleepless nights, you know. i'm finding it hard to put words to it, because even the thought of it is, like, i can't. do you think you would ever go back?

no. to smoking, no. i wouldn't go back to that. i am taking him home to meet his family for the first time in years. i'm a bit nervous, you know. yeah, i'm a bit nervous, but, yeah... how is she going to react towards me? that is what worries me. what happens if your mum rejects you ? that's. .. that's going to hit me hard. home, sweet home. oh, home, sweet home.

he laughs. they laugh. i'm just holding the tears to not fall, and looking like i'm going to cry for real, because i have been missing my mum.

i feel very proud aboutjesus. i hope that, you know, he will show up to them that he has really changed, because it all has to start with him. singing. jesus is back on the streets. this time, spreading the message to other addicts that the drug can be beaten. but, across south africa, dealers continue to push the drugs on the next generation. addicts are still hustling to get the money to pay for their next fix, and i continue to visit my nephews' grave, praying that other families can be safe

from the tragedy of nyaope. hello, there. for some of us, it wasn't too bad over the weekend. plenty of hazy sunshine in the south, further north were plagued by heavy showers and thunderstorms where warnings were in force, parts of scotland and northern england. scenes behind me showed torrential downpours affecting parts of argyll and bute and flooded roads there in falkirk.

heavy showers and thunderstorms aren't done with yet. aren't done with us yet. for much of this upcoming week, it's looking pretty unsettled thanks to low pressure nearby, continuing to see heavy showers or indeed some thunderstorms which could give rise to localised flooding in places. there is the area of low pressure to the north—west of the uk to start the new working week, sending bands of showers across oui’ shores. the focus of them across more northern and western areas where again we could see some embedded thunderstorms. a fresher breeze coming in from the south—west. that will tend to push the showers through quite quickly across england and wales. we could see some sunshine into the afternoon where it is feeling pleasantly warm, 22—25, less humid so that will feel quite comfortable, close to 19 or 20 across scotland and northern ireland. through monday evening and overnight it stays very showery, breezy in the south. plenty of showers in scotland and northern ireland. low pressure isn't going anywhere too fast. it is there on tuesday anchored across northern scotland and into northern ireland so it looks like here we will see the focus of the torrential

downpours once again which will become more widespread as we head into tuesday afternoon as the sunshine heats the ground a bit more. more showers breaking up for northern and western england into wales, again affecting some flood—sensitive areas, so could be looking at some minorflooding in places. the temperatures generally around the seasonal average. low pressure continues to push off into the north sea on wednesday. it opens the doors to a more north—westerly wind that can still feed in some showers to the northern half of the country and it will also introduce something slightly fresher. there will be showers breaking out across england and wales, hit and miss downpours with some warm sunshine in between. those temperatures will be around the seasonal average, 18 or 19 in the north, low 20s in the south. perhaps a little bit dry as we head on into thursday, an area of low pressure tending to push on into scandinavia and allows pressure to build on from the south—west so it could be that northern ireland and much of england and wales could have a dry day with light winds and more sunshine,

so it will feel that little bit warmer, 22—25. you can see pressure higher across the country into the start of friday but then we look to the south—west and this next area of low pressure, pretty deep feature, pushing in across the country, and at the moment it looks like it could affect much of the north and the west with some heavy and persistent rain and stronger winds, whereas the south—east may escape and stay dry at least until after dark, so fairly warm here again, the temperatures high teens further north and west. it looks like as that area of low pressure moves across the country during the weekend, bringing a mixture of sunshine and showers, and then a drop of temperature as it starts to draw in something cooler from the north—west as we head on into next week, so cooler and fresher and with further low pressure systems pushing in off the atlantic, it is set to stay unsettled even into next week. there will be some rain at times, some a bit heavy, and rather breezy and cool with the temperature just a little below the seasonal average, and there could be some issues with flooding over the next few

days, stay tuned for the forecast.

us officials say a mass shooting in texas is a case of domestic terrorism. a gunman killed 20 people in a mainly hispanic area on the border with mexico. police believe he posted a white nationalist manifesto online. we are treating it as a domestic

terrorism case, and we're going to