this is cbs news bay area with reed cowan. >> another massive fireworks bust in san jose and police say this is not their first time dealing with this guy . also a potential legal battle brewing today between twitter and facebook's parent company, there are new threats in the wake of that new app that we know is rapidly gaining a lot of traction. and the fight against alzheimer's disease, we are going to tell you about a first of its kind drug and what the approval could mean for so many families. first, we want to start with developing news out of san francisco, that is where this cruise ship struck a dock, look

at this, it happened at pier 27 this morning, you can see we spotted them , it is pretty fast, but they confirmed the crew ship made contact with the dock just around 6:00 a.m.. no injuries reported, they are currently assessing the damage. the crew was to depart on a 10 day round-trip to alaska this afternoon, no details on whether it is going to go now. we will pass along any details as we get them. san jose police have made another illegal fireworks bust and they have seized 1000 pounds of fireworks and arrested one man in connection with that seizure. anne makovec has the details, this is not his first dance with law enforcement over illegal fireworks. >> reporter: and san jose police announced they have arrested mark espinoza again for the possession of illegal fireworks, they say he distributed a huge amount of them in the weeks leading up to

the holiday. he is a community activist in san jose, but for now espinoza is in jail. he is set to make his first court appearance sometime this afternoon. police started investigating the 49-year-old back in june after some informants voiced concerns about the sale of illegal fireworks in the neighborhood north of san jose. this saved people from injury and potential fires. >> all of these fireworks are illegal here because the folks who are grabbing them are not trained to handle them. they are extremely volatile, and i think what we ended up doing, like i said before, we saved hopefully at least one house from catching fire, from somebody else going to the emergency room. >> espinoza has faced similar troubles with the law , he and his then 18-year-old son were arrested in 2017 after police found 1200 pounds of illegal fireworks at their home. you may remember espinoza from the

story we did in september last year about him and his son starting to build a park in his neighborhood, but they did not have the permits so that was a controversy. authorities are still investigating who he sold his illegal fireworks too. they say they don't believe it was contained to san jose and he might have been selling all over the bay area. and just for your notes, last week, san jose police arrested two people they say are responsible for that massive fire at the storage facility. look at this, investigators say they found around 38,000 pounds of illegal fireworks in the storage unit . they also say they found drugs and cash and firearms. look at all the evidence for the exact cause is under investigation but police believed fireworks were also a factor. a close call for a napa county neighborhood, we brought you these name images

yesterday. firefighters doing heroes workpeople rushed to get out. thfire burned about 8.5 acres near bill road. the hotspots are down, 100% contained. and what people heard right before the fire make them certain they know why it happened. >> this is the first time i would say that i was a little bit scared. and you know, to just get out of here and get the family loaded in the truck and out. >> reporter: he lives right near the site where the fire started, it came about 100 feet from his home. >> as soon as i saw the flames, i jumped on the tractor and dialed 911. i was talking to the dispatch and they were here within a couple of minutes. >> reporter: the fire department and several other agencies including cal fire responded, it raced up the hill and they were stationed at each home . although napa fire hasn't released the cause of

the fire, neighbors reported hearing a loud sound before they saw the flames. >> i was on a job and i just heard a bang and me and my boss saw smoke. >> i thought it was some kind of big firework, i was about three or four miles away and i heard it. >> reporter: residents said they have had problems with fireworks in the area earlier in the week, a fire forced about 30 families to evacuate, there were also about 30 students at a middle school for a summer program that had to evacuate as well. the quick response from firefighters and residents taking steps to create defensible space , help to keep the fire from burning down any homes. >> we got some wind, with one spark, it can go a little bit too fast. >> it sure did. other top stories we are following, an arrest in the deadly shooting of a flower delivery man in

oakland. the victim seen here, matheus gaidos was killed after some sort of confrontation with the suspect on june 30 first. the arrest comes a week after police releasphoto of the suspect. san francisco police orifice to gettthdeath of a woman in the bayview, somebody pushed that 63-year-old woman from behind at third on monday and it caused her to fall and she hit her head and she died at a local hospital because of her injuries. no arrests in this case. twitter is threatening a lawsuit against a new rival . the tech battle comes less than a day after the launch of threads, it is a new app that is linked to instagram which already has tens of millions of users. twitter said threads engaged in trade secret theft because twitter alleges that threads hired former twitter

employees. we are following the thread, so to speak on this overnight explosion. >> reporter: smart phone users everywhere have a new social media option, instagram known for pictures and quick videos now has a new app called threads that looks a lot like twitter. here, you can see threads on the left and twitter on the right. >> strategically, intentionally, unashamedly similar to twitter. >> reporter: users can link their account to the new app and follow the same people. >> instagram has 2 billion users compared to around 250 million on twitter . so if they try using threads, it is overtaking twitter in the blink of an eye. >> reporter: threads is one of several competitors for twitter including blue sky from the twitter cofounder, jack dorsey. elon musk is facing backlash for recent changes. >> since he took over, the system itself is working as

well as it should, we saw twitter go down, there have been limits put in place so it doesn't break the servers again. >> reporter: instagram is a part of meta, the ceo and mark zuckerberg recently agreeing to a cage match. he went on twitter and posted a picture of two spiderman's pointing at each other apparently admitting to the platforms similarity. we will see which one people prefer. >> they responded to the lawsuit saying competition is fine, cheating is not. we talked to one tech writer who says twitter has other reasons to worry. >> twitter has been fraught with drama, it is not making money. it had to max the number of posts that people could look at and when you are a platform that makes money off of advertising, that is very bad. you know, these are just tough times for twitter, some people would argue it is a death

spiral. >> if you have friends overseas, threads is unavailable in the european union because of data privacy concerns. alzheimer's disease can really tear families apart, but now there is hope for you today. we are going to tell you about the big move by the fda and what this means for healthcare. if you want to get your business going, you have to come out here and grind. when it is slow. >> he believes in our cities and says we should, too. the message to keep the faith in the city that has seen troubles like this before. gray skies over san francisco this afternoon, while inland is seen

that cruise ship is still parked, we are still following that story as well. one hour ago, the fda fully approved a landmark drug to treat alzheimer's disease. the drug targets plaques in the brain associated with alzheimer's disease. listen up, especially if you have a family touched by this disease, it could slow cognitive decline by 27%. that effectively delays the disease by five months. but, more than

one in 10 users had brain swelling and bleeding when they used this and three patients died . another concern is how much it cost, it can cost more than $26,000 per year without insurance. >> we do know that there are a lot of third-party payers who are now having to strongly consider how they are going to pay and provide access to this particular drug. >> and the fool approval -- according to the kaiser family foundation, that could raise the cost of etiquette or part b for all enrollees. concerns on wall street over the state of the job market, they say it is too hot and they have worries about interest rates. job openings in the united states fell to 9.8 million, but it's not big enough for the federal reserve. they have been aggressively

trying to cool the labor market to combat high inflation with sustained rate hikes. they are cheering, but here's your headline, rough day on wall street, the dow started in the red and stayed that way, it dropped 366 points, the nasdaq and s&p 500 were also in the red. now two reports of another blow to san francisco's tourism industry, two tech conferences that were said to bring thousands next year are reportedly canceled. according to the chronicle, red hat is moving its conference to denver and meta canceled its business group summit. the travel association tells the papers, san francisco is only expected to do about 60% of its average convention business next year. there is another side to the story to the tourism industry, crowds packing peer 39 even before the sun went down for

this year's july 4 celebrations. people in the city are loving it. we met one entrepreneur whose livelihood depends literally on foot traffic. kenny introduces you to a downtown shoeshine or who still sees that san francisco can and will put its best foot forward. >> there is no quit in the business of shoe shining, it is a nonstop daily grind for survival. christopher mitchell has been buffing shoes for more than 40 years. >> no matter the color , whatever, you just treat people like humans and keep it like that and keep rolling, that is what i've been doing. >> if you want to get your business going, you have to come out and grind, when it's slow. >> reporter: even around noon on a weekday, market street appears empty, "olajuwan" is

the loan shoeshine or , he said there used to be 20 others like him. >> normally walking down the street, there would be five or 10 people within 50 feet of you, and here you are lucky to have a few people. >> the office vacancy rate continues to climb, hovering above 30%. cities across the country are grappling with the economic impact and tax revenue decline because of emptying offices but san francisco's rate is the highest among major cities. >> we are getting close to a peak in the vacancy rate. >> the executive director of the tech insight center at cb ari, one of the largest commercial real estate services and firms. >> we are hopeful that starting sometime in early 2024, we will start to see a turnaround in the economy , so that will lead to more business growth and more hiring, potentially more

demand for office space. >> that reversal will be a much-needed boost for "olajuwan", he said his business was crushed during the pandemic. but, he will not let this destroy his perseverance. >> i always want to make my parents proud of me. i want to at least let them know that they didn't waste their time with me. >> reporter: even with empty buildings and storefronts surrounding him, he is focused on turning what is dole into a san francisco shine. >> he will see more businesses coming his way, but it might not be right away. san francisco hopes ai companies will take up some of that office space, the city is exploring converting some of it to living space. we are watching this as san francisco makes the pivot. it is time for our first alert forecast with paul heggen. >> we still see cool conditions across most of the bay area

and a lot of cloud cover over the city, a little bit of sunshine earlier but the fog is starting to swallow up the top of the salesforce tower once again, we will see that fog spreading out for the rest of the evening and tonight, coastal drizzle is going to be possible. cool temperatures are going to be continuing through the weekend, cooler than average is still warm for parts of the east bay especially but the pattern will flip around beginning early next week, back to near normal temperatures on monday and some hot weather in store beginning on tuesday. you can see that in the 10 day outlook for livermore, some of the biggest swings in temperatures, you will be well below the average high of 87 through the weekend and a big spike in temperatures over the 48 hour time frame. sunday afternoon to tuesday afternoon, the highs will jump about 15 degrees and the inland temperatures are going to be hovering in the 80s and 90s. no extreme heat likely at this point but it is something we will continue to evaluate at

this point. blue skies over san jose right now, 72 degrees. inland temperatures in the 70s. bayside temperatures in the low to mid 60s. not nearly the variation we see in july, but it's going to be widespread once again, a combination of low cloud cover and fog at ground level. visibility less than half a mile. the fog will retreat out of the valleys quickly, it'll take a little bit longer to clear out around the bay and along the coast, you will not see much sunshine at all. temperatures tonight, not much variation under that blanket of clouds, low to mid 50s across the board. the wind will pick up once again, it's going to be a decent onshore breeze hoping to improve the air quality and keep it in the good category which is what we will return to today. 30 to 40 mile per hour wind gusts along the coast. it is a cool direction, keeping temperatures

down to a dozen degrees below average for concord. right along 60 for the coast, mix of upper 60s and low 70s down the peninsula and the south end of the bay. mostly low to mid 70s for the tri-valley, the warmest spots further inland, 80 degrees around contra costa and solano counties. mid to upper 60s for oakland and east bay. a few upper 70s inland and the north bay with temperatures further inland warming up to a greater extent, especially into lake county . temperatures are going to be bouncing back beginning monday and more noticeable by tuesday, wednesday, and thursday. even around the bay, low 70s in san francisco and around 80 degrees in oakland by wednesday and thursday. inland temperatures are going to return to the upper 80s and low 90s, that will continue through the end of next week and into the

weekend. some of the hotspots will approach 100 degrees by the end of next week. that is typical for the middle of july. returning to the mid-sixties along the coast. the mayor of one bay area city takes a dive into the cold waters of the bay. her mission to bring back an important part of her community.

we know that bridges help all of us to get over water,

but sometimes to build bridges in the community, you have to jump into the water. one mayor of a bay area city did that, she is helping to raise money for restoration of a city landmark. vern glenn was there waiting for her. >> reporter: she is the mayor of sausalito , and for melissa, this was her office early wednesday morning. >> i'm just out here for the sea lion. >> reporter: she is no stranger to the open water, she swam the english channel, it took her 15 1/2 hours. >> the first thing i said was, holy expletive, i just swam the expletive channel. >> she completed it in 45 minutes. >> the biggest challenge was the raccoon rapids, they are always a blast, it's just 8 to 10 minutes with your head down but it was so fun. >> she swam with a purpose, the mayor is trying to raise $50,000 for the city to repair

the iconic sea lion statue. >> so i'm hoping it'll be back soon. >> it stood at the sausalito waterfront for 65 years before being damaged by the storms in january. >> i felt like i'm using something i love so much to save and repair something i love so much, there's nothing i love more than open water swimming except for the city of sausalito. >> if you would like to help restore the sea lion statue , you can reach out to the sausalito foundation,

goli, taste your goals.

coming up, postal workers robbed at gunpoint, it has happened several times in the past few days. in fact, it happened while we were out covering the story. where it happened, and exclusive details coming up at 5:00. elizabeth cook and ryan yamamoto will have that plus an update to your weather forecast. a professional skater is reaching the top of a skateboarding contest and he is doing it while blind, he has been skating for more than 25 years. >> i have less rods and cones

in my eyes than everybody else is born with, light perception, color perception, those things are really jacked up. you may be standing less than 10 feet away from me but it's hard for me to recognize facial features. >> this is john, he's in the quarterfinals of the tony hawk's skate park hero contest, the winner gets $10,000 and a chance to skate with hawk himself. it raises money to build skate parks and under served communities. >> it must be all by feeling. >> it athletes say that anyways, and cert nly in his ♪ ♪ >> jericka: nearly 90 million americans face scorching heat with the last three days likely the hottest ever on earth, so when might some relief be on the way? here are tonight's headlines. ♪