. >> reporter: mourners remembered renowned doctor mark hausknecht in this houston churchaturday. surveillance video from july 20 around the houston medical complex shows 65-year-old hausknecht riding his yellow bike moments before he was murdered. houston police say he was shot three times by this suspect, who they call a very dangerous individual. the suspect was also riding a bike, wearing a baseball cap, sunglasses, and a backpack. the man rode past the doctor, continued for two blocks, before turning around and firing. >> from top to bottom, it's a perplexing case. >> reporter: police chief art acevedo says they have not identified a motive in the killing of hausknecht, who treated president george h.w. bush in 2000 for an irregular heartbeat. houston police released this tweet thursday saying, "there is a high probability the doctor was targeted." >> we're going to end up identifying this individual, and we'll be able to get justice for the family and, most importantly, justice for this community that had a brilliant cardiologist taken from us. >> reporter: dr. hausknecht's

mark hausknecht in the final images.hey show t doctor in blue scrubs ridg his bikeo work just like he did every day. not far behind him, another man on a bike trailing hausknecht seen heraring a bulging back pack. inutes later police say the gunman rode in front of the doctor and filhr shots while facing him. the medical examiner confirming hausknecht guide of gunshot wounds to the head, torso and upper extremity. investigatorss releasing thi sketch of the suspect. friends and neighbors now retracing the killer's path, searching fes c >> did you see anythingl?unusua >> reporter: and asking residents to check their home surveillance cameras. >> we want to solve this murder, a senseless murder. >>eporter: police continue to investigate why someone would murder a man who dedicated his life to saving others. tammy leitner, nbc news. >> still ahead, the curious case of brad pitt's style going viral this morning. plus the next generation of charlie's angels ready to earn their wings in the upcoming reboot of the tv classic. m,

mark hausknecht. it happened july 20th as hausknecht, shown in green, rode his bike to work.t, in red, follows close behind, opening fire in broad daylight. >> the suspect drove past the doctor, turned and fired two shots. the doctor immediately went down. >> reporter: adding to the mystery, houston's police chief now says, "there is a high probability the doctor was targeted," but offering no other details or motive. hausknecht, who once treated president george h.w. bush, was 65. >> i was shocked. i was stunned. couldn't absorb it. yeah. and i'm still grieving, like many people are. >> reporter: houston homicide detectives are asking people to check any security cameras or dashboard cameras that might have also seen the killer. in the meantime, there is a $5,000 reward. david? >> let's hope it helps. clayton, thank you. >>> when we come back, news tonight about alex trebek. >>> also, a breakthrough for depression. >>> the frightening crash here in new york city. an suv slamming into the front of a restaurant. several trapped. >>> and music legend neil diamond, and what he d

was gunned down -- mark hausknecht was gunned down riding his bike to work.ctor was riding north when he passed the shooter also on a bike going the other direction. >> the suspect was on a bicycle, as well. drove past, rode past the doctor, turned, and fired two shots. the doctor immediately went down. >> reporter: a private ambulance passed by the scene, an emt stopped to help before the houston fire department arrived. >> i seen somebody flagging us down. i said, you know, something's wrong. then i drove up further, and i seen a gentleman sprawled out on the floor with blood all over him. >> we stopped, rendered aid to the best of our ability. >> reporter: authorities said investigators don't know if the shooting was targeted, random, or caused by road rage. a few people may have witnessed the attack, and police are looking at surveillance video. >> our homicide investigators are interviewing people. another good thing about our medical center, as you know, there's a lot of cameras. we're hoping that we can get some -- some footage of this. >> reporter: on

he said hausknecht was a model physician who rode his bike to work every day. reena. >> ninan: that police officer is right. somebody must have seen something. >> reporter: yeah. thank you very much. hard to believe someone did not see something. >> ninan: thank you very much. in clearwater, florida, an argument outside a convenience store yesterday turned deadly. surveillance video shows a man confronting a woman for illegally parking in a space reserved for disabled drivers. the woman's boyfriend walks out of the store and shoves the man to the ground. the man pulls out a gun and shoots him. he died at the hospital. police say the gunman had a concealed weapons permit and will not be charged because of florida's "stand your ground law," which allows shootings done in self-defense. millions of americans from the mid-atlantic to the northeast are under the threat of severe weather tonight. let's get the latest from jacob wycoff at wbz-tv in boston. jacob? >> reena, the jet-stream pattern that is setting up is going to keep us in the rainy pattern over the next

hausknecht treated thousands of patients in the houston area. police have not released a possible motive for his murder. >> erielle, thank you. >>> and there's much more ahead on "world news tonight" this sunday. fire on the tracks, was it arson? >>> plus, passengers livestreamed without their knowledge. how the driver was doing this. >>> and the police chase taking a deadly turn. the horrible accident, and now the manhunt. [music playing] across the country, we walk. carrying flowers that signify why we want to end alzheimer's disease. but what if, one day, there was a white flower for alzheimer's first survivor? what if there were millions of them? join us for the alzheimer's association walk to end alzheimer's. register today at alz.org/walk. in the movies, a lot of times, i tend to play the tough guy. but i wasn't tough enough to quit on my own. not until i tried chantix. chantix, along with support, helps you quit smoking. it reduced my urge to smoke to the point that i could stop. when you try to quit smoking, with or without chantix, you

mark hausknecht that commute to work on their bikes.some surveillance video showing that possible gunman right behind him and then coming up in front of him, they say shooting him three times killing him right next to a construction site. i actually went to the construction site yesterday, spoke to the manager. he said about 500 people were working on that site at the time of his death and had no idea that he had been killed. >> oh my goodness. >> one of the reasons for that they say was so much noise, the construction site. thank you so much for that. >>> one nfl player has become this inspiring leader for the atlanta falcons. coy wire has more on him in a moment. chicken?! chicken. chicken! that's right, candace-- new chicken creations from starkist. buffalo style chicken in a pouch-- bold choice, charlie! just tear, eat... mmmmm. and go! try all of my chicken creations! chicken! man: are unpredictable crohn's symptoms following you everywhere? it's time to take back control with stelara®. for adults with moderately to severely active

hausknecht on the bike.knew who was because that doctor would go by that site every single day and say hi to those workers. even though there were about 500 on site at the time, they couldn't hear anything because of their loud equipment and how big that structure was they were building. neighbors and people in the area have been ever since then getting everyone together to look at their own surveillance footage. police say they do feel confident that they will be able to make an arrest eventually. just because of how many people did see that gunman. they were able to put together a sketch of the man who they believe is an hispanic man about 5'10" in his 30s. he's believed to have gone down a residential street nearby and police aren't saying much after that, other than they think there is that high probability they might have been targeted. friends and family just can't understand why anyone would target this doctor. he was beloved in the community. when his sons were younger, he was the scout master would

hausknecht was a well-known doctor.r president bush's publicist said he would be grateful for his care. his family is in my prayers. not only revered by patients but highly regarded among peers and colleagues. recently recognized as a super doctor. investigators have only been able to describe their suspect as either a white or hispanic man in this 30s riding a light-colored mountain bicycle at the time of the shoei ishoot which took place yesterday, fred. that's the only evidence released but doesn't mean they don't have leads. a lot of times they keep information close to the vest if they are pursuing if of these leads. important to point out this happened during rush hour yesterday morning. the tragic irony is it happened in the shadow of the medical facility where this man saved many lives. >> terribly sad. thank you. >>> much more straet ahead in the newsroom. first, here's this week's "turning points." >>> i stumbled upon yoga to save my life basically and knew i found something special. knew i had been given a gi

mark hausknecht. he was riding his bike to work last friday when police say the suspect rode past him and turned and fired two shots. police have also released a surveillance photo showing the alleged shooter riding away after the murder. hausknecht once treated president george h.w. bush. >>> a driver for uber and lyft has now lost his ride after admitting he live-streamed passengers in the backseat without their consent. jason gargac is accused of posting video online of more than 700 customers in st. louis including their conversations and addresses. some passengers who found out about the recording say they would not have consented if they had been asked. while they may not have liked it, the driver was actually not breaking the law. >> in the state of missouri, as long as one party and in this case it's the uber driver gives consent to the recording, it's not deemed illegal. >> 38 states have so-called one-party consent recording laws similar to missouri. >>> 16 varieties of ritz crackers are bei

mark hausknecht, a cardiologist was riding his bicycle in broad daylight near the houston medical centerhere he treated patients for four decades when he was shot. >> the suspect was on a bicycle as well, drove past, rode past the doctor, turned and fired two shots. the doctor immediately went down. >> reporter: hausknecht treated the elder president bush for an irregular heart beat nearly two decades ago. >> he may not have had a problem like this just past yesterday, it may have started sometime before this. >> reporter: in a statement president bush says, "mark was a fantastic cardiologist and a good man. i will always be grateful for his exceptional, compassionate care." david, tonight friends say the doctor loved staying in shape. he died while biking, one of the activities he enjoyed the most. david? >> will carr tonight, thank you. >>> when we come back here, you will see that rare video from the amazon. is he the last known member of an amazon tribe being looked at around the world? >>> and tonight, the warning involving mcdonald's. more than 160 customers reportedly sickened. we

mark hausknecht, house surgeon who treated former president h.w. bush was likely targeted.iate spoke with a former fbi investigator as he tries to piece together this bizarre case. >> one week later, to stand where dr. hausknecht fell after being shot. >> trained investigator and, you know, you conduct investigations without emotion but there's some emotion just being here. >> it's tough even for a seasoned investigator who spent 22 years with the fbi. >> we know the doctor across the street on his bike. >> i walk with dennis franks following the path dr. house connect took. the shooting happened near a construction site on main street near west holcombe. a worker who spoke to us off camera mentioned they had been using a type of nail gun to fire nails into iron supports. something someone with sinister plans may have used to their advantage. >> used gun powder and a shell to fire the nails into steel. so that sound itself would sound like a gunfiring. is it coincidental? i don't know. >> then there's the precision of the shooting. dr. hausknecht was shot while riding his b

or such a heinous crime. >> reporter: hausknecht was 65. his patients included the president, george h.w. bush, who said, "i will always be grateful for his exceptional, compassionate care." and right now, police say they do not know who this suspect is, and they do not have a motive. david? >> clayton, thank you. >>> to developing headline involving michael cohen tonight. friday night we reported cohen taped then-candidate trump. well, tonight, we have now learned of 11 more audio recordings seized in those fbi raids. they've now been released to federal prosecutors. sources tell abc news tonight that it appears that none of those 11 recordings involve the president. >>> and a delay for the first trial to be brought by the special counsel. a judge moving today the virginia trial of paul manafort from this week to next tuesday now, and allowing the prosecutor to call five witnesses who will testify under a grant of immunity. manafo >>> and there is still much ahead on this busy edition of "world news tonight" monday. the desperate search fo

hausknecht took. the shooting happened near a construction site on main street near west holcombe. us off camera mentioned they had been using a type of nail gun to fire nails into iron supports, something someone with sinister plans may have used to their advantage. >> use gun powder in a shell to fire the nails into steel. so, that sound itself would sound like a gun firing. is it coincidental? i don't know. >> reporter: then there's the precision of the shooting. dr. hausknecht was shot while riding his bike. >> when the target is moving also, that takes skill. >> reporter: it suggests to franks that the shooter was someone who had training. >> and there were three shots? >> reporter: three shots is what the medical examiner is saying. >> so, i find that very interesting. it could be that just the shooter has a certain amount of training, but that's typically a tactical training. that's tactical either law enforcement or military training. two shots to the chest, one to the head. that's usually the training where you come out, boom, boom to the chest, boom, one to the head, in t

mark hausknecht in green, riding his bike to work. it's just before 9:00 a.m. friday morning. broad daylight, a busy intersection. the suspect in red, riding just behind. >> the suspect drove past the doctor, turned and fired two shots. the doctor immediately went down. >> reporter: moments later, the gunman flees on a mountain bike. police releasing this sketch, the suspect described as a white or hispanic man in his 30s. >> i just would not associate this place with any sort of crime, forget such a heinous crime. >> reporter: hausknecht was 65. his patients included the president, george h.w. bush, who said, "i will always be grateful for his exceptional, compassionate care." and right now, police say they do not know who this suspect is, and they do not have a motive. david? >> clayton, thank you. >>> to developing headline involving president trump's former long-time fixer and personal attorney michael cohen tonight. it was friday night here we reported cohen recorded then-candidate donald trump in a conversation cohen had with him involving money, the owner of "the nation

hausknecht and a motive. arthel?hank you bryan llenas. >> authorities are searching for a university of iowa student who was reported missing on wednesday afternoon evening job. molly tibbets was last seen in the town of brooklyn, iowa. she was dog sitting there with her boyfriend. he says she went for a run around 10 o'clock. and never came back. she is described as five feet two inches tall with long brown hair and brown eyes. anyone with information on her whereabouts is asked to call the area code 641-623-5679. we pray for safe return for. >> we really do. president trump says he is ready to put tariffs on half $1 trillion worth of chinese imports. how would that impact our relationship with beijing? and your wallet? plus, space x launching a heavyweight communications satellite into orbit. why this left off set a record. we will tell you coming up next. again. ♪ ooh, baby, do you know what that's worth? ♪ i want to believe it. [ claps hands ] ♪ ooh i'm not hearing the confidence. okay, hold the name your price t

mark hausknecht. >> it was professionally executed >> reporter: retired fbi agent studied the area frombeen done where there is a lot of noise, i think, is important. >> reporter: t shooting happened in broad daylight in a construction area on the sprawling 1,300cr complex at the texas medical center. video from theity bus cam shows hauinnecht ridg his bike to the hospital just as he did every day. not far behind is a man also on a bike with a cap pulled down over his face with a bulging backpack. >> was it change of clothes or weapon i'tthere? we d know. >> reporter: police now saying the doctor was likely targeted. offering no motive and few details. autops results show the docto was shot three times, including in the head and torso. >> from top-to-bottom, it is a perplexing case. ds reporter: unanswered questions as frind family remember the slain doctor. >> we started together 31 years ago. >> reporter: he said his friend was proud to be a buddhist who cared about the environment as much as his tspati >> very humble. very caring. i think did a s terb jobing care of people. >> report

mark hausknecht while riding his bike to work and linsey davis is here with the story.d morning shl good morning, linsey. >> reporter: good morning. neighbors so desperately want to see the killer caught they are hitting the streets themselves. last night a group of more than a dozen went door knocking asking questions and handing out flyers canvassing the southgate neighborhood. this morning, the houston manhunt intensifies as family and friends mourn the death of renowned heart surgeon dr. mark hausknecht, police are urgently searching for his killer. these grainy images show dr. mark hausknecht in green riding his bike to work just before 9:00 a.m. on friday. broad daylight. it's a busy intersection. the suspect in red riding just behind. >> the suspect drove past the doctor, turned and fired two shots. the doctor immiatet gunman flees on a mountain the poli sketch of the gunman who they say appears to be in his 30s and is either white or hispanic. h.w. bush died at the same medical complex where he worked for more than four decades. >> i just would not associate thi

mark hausknecht in the final moments before being gunned down. the images captured from a city bus cam show the doctor in blue scrubs riding his bike to work like he did every day. not far behind him, another man on a bike trailing the doctor seen here carrying a bulging backpack. minutes later the gunman rode in front of the doctor and fired three shots facing him. the medical examiner said he died of gunshots from the head, torso and upper left extremity and investigators releasing this sketch of the suspect. friends and neighbors retracing the killer's path searching for clues. >> did you see anything unusual? >> reporter: and asking rent >> we want to solve this murder, a senseless murder. >> reporter: tonight, police continue to investigate why someone would murder a man who dedicated his life to saving others. tammy leitner, nbc news. >>> we turn now to a critical health warning for america's mothers, it might shock you to learn the u.s. is the most dangerous place to give birth among developed nations. hundreds of moms dying every year in

hausknecht was shot and killed on friday. dr.d in green and the shooter in red. the shooting happened one block away. the suspect is possibly 30 years old and wearing a tan baseball cap or jacket and khaki shorts. dr. hausknecht treated president bush back in 2000. in a statement the 43rd president said this. mark was a fantastic cardiologist and a good man. >>> the tsa is rolling out what its leader calls revolutionary scanning technology. we'll show you how they can detect items older machines may miss and how they could speed up airport security checks. >>> if you're on the go, subscribe to our "cbs this morning" podcast or podcast app to wherever you like to download your podcasts. you're watching "cbs this morning". the capability to get big things to big places --bigtime. and things just got bigger. f-150 is now motor trend's 2018 truck of the year. this is the new 2018 ford f-150. it doesn't just raise the bar, pal. it is the bar. when i walked through a snowthat's when i knewtte, i had to quit. for real this time. that's

mark hausknecht seen here with one of his past patients, former president george h.w. bush. beloved physician gunned down just before 9:00 a.m. friday morning while riding his bike to work. >> the suspect was on a bicycle as well. drove past, rode past the doctor, turned and fired two shots. the doctor immediately went down. >> reporter: a private ambulance happened to be driving past. >> i seen somebody flagging us down, and i said, you know, something is wrong, and then i drove up a little further and i seen a gentleman sprawled out on the floor with blood all over him. >> reporter: first responders then rushing hausknecht to the emergency room at the very medical complex where he spent four decades treating patients. doctors there pronouncing him dead soon after. colleagues remembering him as compassionate with a phenomenal bedside manner and the elder president bush whom he treated for an irregular heartbeat nearly two decades ago saying, i will always be grateful for his exceptional, compassionate care. >> was he targeted? you know, i don't know. i just know it's horrib

mark hausknecht was shot and killed while biking to work earlier this month, the latest in a series ofillance photos and video released by police. the doctor once treated former president george h.w. bush. >>> "variety" reports the cast of "guardians of the galaxy" issued an open letter, saying they fully support director james gunn. disney fired gunn from the third installment of the franchise gunn joking about things like rape and pedophilia. chris pratt, zoe saldana, bradley cooper, vin diesel and five other stars signed the letter. gunn has apologized for the tweets. there's been no comment from disney on the cast letter. >>> "the seattle times" reports a grieving mother orca is falling behind her family as she carries her dead calf for a seventh day. researchers are watching the 20-year-old whale since her calf died shortly after being born last tuesday. they say the orca is laboring through the water as she carries the calf, either by one fin or pushing it through the water on her head. they say they're concerned about the mother's health. >>> and cleveland.com says lebron james

mark hausknecht, who once treated former president george h.w. was, in fact, targeted by his killer. surveillance video showing the suspect shooting the victim. he has not been caught. >>> a new drug showing promise in the fight against alzheimer's. the drug being tested, called ban-2401. they say it reduced plaque in the brain that causes the disease, slowing progression. and in some cases, patients getting some memory back. it is still in clinical trials, but it is hopeful. >>> and nearly 17 years after 9/11, the new york medical examiner using improved dna to identify the remains of 26-year-old scott michael johnson, a securities analyst at the world trade center. his family tonight says the discovery brings them closure. >>> when we come back here, what we never knew about the miracle rescue. you are about to hear from the divers themselves. there's little rest for a single dad, and back pain made it hard to sleep and get up on time. then i found aleve pm. the only one to combine a safe sleep aid, plus the 12 hour pain relieving strength of a

searching an area near the texas medical center for a murder suspect...after cardiologist mark hausknechtfriday while riding his bicycle to police said the doctor was when he passed the shooter - also going in the other executive assistant chief finner/houston police suspect was on a bicycle as well, drove past, rode turned and fired two shots. the immediately went down."ambulance passed by the t's stopped to help...before the houston department arrived. provided: "i seen somebody down and said something's drove up a little further and i seen a gentleman floor with blood all over him." provided (too quick to font): rendered aid to the best of our chief finner said investigators the shooting was targeted, caused by road rage. may have witnessed the attack and looking at surveillance video.assistant chief troy finner/houston police department: "our homicide investigators are people, another good thing about center is there are a lot of cameras so we are hoping we can get some footage of this.' doctor was a well known one of his patients was former george h-w bush... whose spokesman statemen

mark hausknecht who treated the president george h.w. bush in the '90s.es biking to a hospital in houston on july 20. the video that was just releeasd comes from a residential neighborhood. the police believe the doctor was deliberately targeted and they are looking for clues and leads as to who the suspect might be. the suspect wearing a bluish/grayish polo shirt, light colored hat and shorts as well as an olive green backpack that police describe as being fully pa packed. very capitol hilling this attack occurred near a construction zone area. and what leads to the mystery and how braisen this attack was, this area of houston around the medical facility, highly trafficked, very congested. very busy. >> awful, ed, thanks so much for the latest. hopefully investigators will make progress here quickly. thanks again. >>> we're following a lot of news this hour. let's get to it. >> i don't know if that's a crime, colluding with russians. >> collusion isn't a crime? federal elections violations is. >> something major would always go before trump, always. >> t