this is bbc world news, the headlines: the leaders of germany and france have warned of the dangers of a rising tide of nationalism on the 100th anniversary of the end of the first world war. their comments were made during events in paris, attended by dozens of heads of state. huge crowds have been celebrating the centenary of poland regaining independence, waving national flags to turn the streets of warsaw into a sea of red and white. police in california are stepping up their search for survivors in the town of paradise, which has been largely wiped out by the most destructive fire in the state's history. 25 people have been killed. in motor sport, the mercedes team have won the formula 1 constructors‘ championship after their world champion driver, lewis hamilton, won the brazilian grand prix. at ten o'clock, martine croxall will be here with a full

round—up of the day's armistice commemorations. but first on bbc news, in the wake of the brutal murder of journalist jamal khashoggi, the future of crown prince mohammed bin salman, saudi arabia's de facto ruler, is being questioned. our world reveals that close associates of the prince have been involved in torture and murder in the past. the horrific murder of jamal khashoggi shocked the world. the finger of suspicion has been pointed at this man, though he's condemned the killing. but a secret informant inside the kingdom tells the bbc that khashoggi's murder wasn't the first killing to be carried out by people close to the crown prince, mohammed bin salman. and this lawyer, well known within saudi royal circles, says he has evidence supporting that claim. in this programme,

we investigate the past behaviour of the crown prince, and we ask — can he survive the furore overjamal khashoggi? he will forever be shadowed or tarnished in the eyes of the world for this killing. the future of a nation, notjust one man, will be shaped by the battle now on the way. it's very important that a price be paid here. the result could have a huge impact on saudi arabia, the richest and most powerful country in the arab world. jamal khashoggi walked into the saudi consulate in istanbul on 2nd october.

the blurry images of his killers, and their target, have since been played countless times. lurid accounts of a bloodbath inside the consulate have now been confirmed by the turkish authorities. they say khashoggi was strangled and his body dismembered and destroyed. they also say the order to kill came from the highest levels of the saudi government. saudi arabia's protestations, first of innocence then ignorance at the top, have prompted confusion... these could have been rogue killers. then condemnation... it's a very serious situation for us and for this white house. it's put long—standing alliances under great pressure. while for those close to khashoggi, it's been devastating. jamal khashoggi's fiance waited outside the consulate for four hours, unaware of the horrific events taking place only a few metres away.

his critics say the order to kill can only have come from the de facto ruler of saudi arabia himself. but is there evidence of the crown prince's complicity? we can reveal new allegations of criminality within his inner circle. the bbc has learned that the murder of jamal khashoggi may not be the first killing alleged to have been carried out by associates of mohammed bin salman. previously, there had been a series of kidnappings and violent incidents. then, 12 months ago, another step. a death in custody.

in november, 2017, the saudi elite was gripped by panic. the crown prince ordered more than 200 princes, businessmen and government officials to be detained at the luxury ritz—carlton hotel in riyadh. it was described as an anticorru ption drive. an audacious move that seemed to play well outside the kingdom, especially in the white house. back then, mohammed bin salman was talked of almost as a saudi robin hood. the bbc interviewed jamal khashoggi about the events. the message from mohammed bin salman to these people seems to be quite simple, we want the money back.

yes, and i think the saudis should give him the benefit of the doubt. but at the same time, shouldn't that be discussed in a consultative body? yes, we need to crush corruption, but it is being done by i—man rule. khashoggi's concerns seemed to be supported by the allegations emerging from the ritz—carlton, allegations that the detainees hadn'tjust been stripped of their wealth, some had been tortured. a key figure in the interrogations was this man, saud al-qahtani. 12 months later, the saudis themselves would implicate him in the killing of khashoggi. now demoted, he was described as the crown prince's fixer and enforcer. during the interrogations of multibillionaire prince al—waleed bin talal, one of his business

contacts was summoned to riyadh. but qahtani believed alan bender could help the prince to co—operate. saud al-qahtani was bragging about torturing those so—called royals, that's. .. "they are not real royals," that's what he said. he said, "we will treat them like dogs. " al-qahtani questioned prince al—waleed via a video link. once the interrogation was over, a royal visitor arrived. mohammed bin salman showed up minutes after we sat down with a big smile on his face, which led me to believe that he was watching the whole thing. i noticed four cameras in the corners of that suite. so i believe that he was watching the whole thing. after almost three months detention, prince al—waleed was released. another detainee was treated more harshly, according to mahmoud refaat,

a lawyer who's worked for several princes. he's also a long—standing critic of the saudi regime. he says punishment was meted out to prince miteb bin abdullah, former commander of the national guard, and mohammad bin salman‘s cousin. he says family members told him what happened. a secret informant inside the kingdom has alleged to the bbc that the abuse didn't stop at torture.

he says one man was beaten to death. we can't independently verify his story, but it tallies with at least two other accounts of what took place. using an encrypted messaging system, the source says the victim is this man, major general ali al-qahtani, a senior officer in the saudi national guard and an aide to one of the princes who'd been detained. mahmoud refaat says he's heard about this killing from those close to general al-qahtani. he says the general‘s attackers believed he held damaging information about the crown prince

and his circle. refaat describes this secret information as a black box. david kirkpatrick is a new york times reporter with special knowledge of the middle east. he's investigated what happened at the ritz—carlton. i have a very high degree of confidence that there was torture and physical abuse taking place at the ritz—carlton. at least 17 people were taken to a hospital for treatment for injuries they sustained on their interrogation. at least one person, general al-qahtani, died as a result of that abuse. someone who saw the body and other doctors at the hospital who treated him told us he had a broken neck and his body showed many signs of swelling and other forms of physical abuse, probably through torture. the ritz—carlton victims were all high profile saudis. it's alleged the attacks could only have been authorised

at the highest level. saud al-qahtani wouldn't dare to take such steps into a plan of this magnitude without the record of mohammed bin salman, and he only reports to mohammed bin salman. in connection with a separate incident, a tweet that was posted in 2017 on saud al-qahtani's account, stated he's a loyal servant who follows orders from the top. the bbc asked the crown prince's office whether mohammed bin salman had ever sanctioned torture and killing. they said... the killing ofjamal khashoggi

and these allegations have focused attention on the 33—year—old crown prince. so who exactly is mohammed bin salman? and how does a 30—something come to be running saudi arabia? we have become very good friends over a fairly short period of time. powerful friends are what the crown prince most needs right now. since the murder ofjamal khashoggi, mohammed bin salman has been widely cast as the possible mastermind. his carefully nurtured image as a liberal reformer has been shredded. it is a sudden change of fortune. because, up until now, the world has pretty much conformed to his wishes.

he grew up as the favourite son of his father. recently estimated the control of a fortunate estimated at $17 billion. the crown prince has an extraordinary family tree. the saudi royal family, though less than a century old, now numbers more than 5,000. mohammed bin salman is the grandson of saudi's first king, abdul, but then so are more than 3,000 other princes. a wealthy socialite who knows his family well provides a rare personal insight into this secret world. her voice and identity have been disguised. there are also accounts of mohammed

bin salman‘s alleged dark side. a senior prince has told us, on condition of anonymity, of an incident when mohammed bin salman wasjust 16. his voice has been altered to protect his identity. the crown prince is a fairly recent arrival on the world stage. in 2016, he gave his first—ever interview to a specialist in middle east economics and left

a lasting impression. he filled the room. there were quite senior people amongst them. it was his voice that dominated. he is vast. he towers over all his courtiers and he has these huge hands, which he uses to make his points. the conversation turned to how, only the day before, more than a0 people, some said to be terrorists, were said to be executed in saudi arabia. there was one chilling statement he said at the time, which was "execution is a language that my people understand". if he was going to retain control, i think it was clear at that point that death was going to be an instrument of policy. what made jamal khashoggi a candidate for assassination? he was an insider in saudi royal circles, but with a global network of friends and contacts. born in 1958, his grandfather had been in the personal position

to the first saudi king. he uncle, a billionaire arms dealer, in the 1980s was labelled the richest man in the world. jamal khashoggi's first cousin was dodi al fayed, boyfriend of diana, princess of wales. as a young foreign correspondent, he gained the trust of 0sama bin laden, interviewing him several times when bin laden was fighting the soviets in afghanistan. he first welcomed what mohammed bin salman might bring to saudi arabia. but by 2017, as he made clear in a bbc interview, he had revised his opinion. today, it is ruled by only one man, not even within the family, he has no—one close to him,

even within the family, he is the sole leader of saudi arabia. one—man rule is always a problem. it always ends with disaster, whether in germany or in iraq or saudi arabia. riyadh has now accepted the murder of jamal khashoggi was premeditated. but who authorised it? anybody who takes a decision in the kingdom defers to mohammed bin salman before they act. is it conceivable that there could have been intelligence operatives, members of the security establishment trying to impress their master and miscalculated? possibly. saudi arabia has stated that the operation was carried out by a team acting without the knowledge or authorisation of the royal court. however, the saudis themselves now accuse saud al-qahtani, the trusted servant of mohammed bin salman, implicated in the ritz carlton abuses, of playing a role in the jamal khashoggi killing.

they say he was in charge of the team sent to istanbul. the bbc has established that saud al-qahtani has not been back to his office since the death of jamal khashoggi. saudi media say he has been fired, along with two other officials. we asked saud al-qahtani to comment on the allegations made in this film. he has not responded. however, the saudi government has told the bbc its investigation into jamal khashoggi's death will be... what now lies in store for mohammed bin salman?

leon panetta served as defence secretary and also director of the cia under president 0bama. he has met the crown prince on several occasions. i think it is very important that a price be paid here for the horrendous murder that took place in that consulate. it's up to the crown prince to make clear what occurred here, the bottom line is his credibility has been damaged. with his reputation badly tarnished overseas, how much support does the crown prince still command at home? right now, the royalfamily is enormously unhappy with crown prince mohammed bin

salman. one of the distinctive features of his rise to power is a crackdown on the privileges that the royal family has enjoyed. so the royal family really hated him before jamal khashoggi and continues to hate him. the question is, do they have any power to do anything about it? in 2017, jamal khashoggi told the bbc that his ambitions were modest. yes, he could influence how people thought, but, after all, he was just a writer. jamal khashoggi's ambition can no longer be fulfilled. but will anybody be held accountable?

it's too soon to say who will be tried in connection with the killing. but in the court of world opinion, a trial is already under way and the defence are on the ropes. despite the tens of millions reportedly spent lobbying in the us, the savagery meted out to jamal khashoggi has wiped away the smiles that used to greet mohammed bin salman. and the man whose interview helped to bring mohammed bin salman to the world's attentions says

the brand has lost its lustre. what you can say at the moment is inside the kingdom he still looks the pre—eminent force. i think he will remain, for the foreseeable future, but he will be a very different ruler, he will be someone who will be very nervous about his position, he won't feel that he enjoys the confidence of the international community. his economic vision is already in doubt, but it will be placed even further in doubt. it relied heavily on foreign investment and it is very hard to see how foreigners are going to take a punt on saudi arabia in the coming months and years. saudi arabia's recent actions have attracted massive global attention. most of it hostile. ironically, jamal khashoggi's death has subjected the saudi government and the man who runs it to the sort of scrutiny nothing he wrote could ever have achieved.

it has been the sort of weekend where you have had sunshine one minute and then the next heavy downpours, changeable and turbulent and it will be a slow process, but we all quiet the weather down a bit by the end of this week. but not just yet, breezy for the next few days without mixture of sunshine and showers because low pressure is quite close by. this frontal system trying to fringe in towards the south—east. it will provide more general rain of time across the south—east of england and then it is essentially a day of sunshine and showers, the showers heaviest in western areas and there could be the odd rumble of thunder. eastern england and the north—east of scotla nd england and the north—east of scotland not seen as many showers, still mild and breezy. a subtle change for tuesday. this area of

high pressure tries to knows its way in. it does not look like much on the chart, but will suppress the shower activity a bit. there will still be some, most especially in western areas, but more on the way of dry weather and sunshine although things will cloud over for northern ireland and western scotland and rain here. temperatures 12—14dc. split fortunes by wednesday because northern ireland, scotland will be affected by outbreaks of rain, some about rain in the northern england, the fall of the south east ewloe, the fall of the south east ewloe, the better of staying dry with sunshine, but with all of us with this southerly wind, mild, temperatures will above where they should be at this point in mid november, 15 or 16 celsius. as we move out of wednesday into thursday, two different factors trying to influence our weather. low pressure to the western high pressure to the east, the high will have increasing amounts of control over the next few

days. on thursday, the squeeze between the two putting up the southerly winds so still that mild the across the country. mist, fog and patchy low cloud purse which will melt away to give spells of sunshine. rain in the far north—west but temperatures could get as high as 17 celsius. but that area of high pressure will have more control for the end of the week. the centre of the end of the week. the centre of the high on friday a long way east of us across russia, but it will extend its influence westwards, the winds falling lighter, and with those light winds, it will attract a lot of cloud underneath the high, mist, fog and murky conditions. as friday wears on, i am hopeful that things should brighten up and we will see sunshine. lighter winds and relatively mild, 12—15dc. next weekend, the jet stream, relatively mild, 12—15dc. next weekend, thejet stream, the relatively mild, 12—15dc. next weekend, the jet stream, the stream of strong winds that drives weather systems around the world, will be a long way north of our shores and

that will allow high pressured to continue influencing our weather and by this stage, the high is closer. initially, as we go through the next weekend, we will stick with that relatively mild theme, but beyond next weekend, there are just signs that we might start to tap into something a little bit cooler. nothing desperately called but those temperatures may drop a bit. next weekend and beyond, mostly dry, low cloud and fog could be an issue but some sunshine, but perhaps just turning a little bit cooler eventually. this is bbc news i'm martine croxall. the headlines at ten. prince charles leads the tributes on the armistice centenary, laying a wreath at the cenotaph on behalf of the queen followed by senior politicans and members of the armed forces. tonight, the queen was joined by the german president,

and members of the royalfamily, for a special service of remembrance at westminster abbey. in paris world leaders put aside their differences, to unite in remembrance. a unique tribute to victims of the war: the face of wilfred owen and others etched sand, along britain's coastline.