He leaves behind his wife and two young children. He is the son of a retired firefighter. He started the Fire Department since 2007. He was most recently assigned to station three in the tenderloin the busiest in San Francisco. This is a very trying time as jason was wellliked in our department. Reporter the San FranciscoFirefighters Union said our hearts go out to his family and loved ones especially his two young children. Firefighters mourn the loss of our brother and we are committed to doing everything in our power to support the cortez family in the days months and years to come. This is the first onduty depth of the San FranciscoFire Department since 2017 when the battalion chief died in his office after returning from a call. In 2011 two firefighters died after a house fire. Todays death will be investigated by cal osha. Was this the kind of training that just happens every year for firefighters . Cortez was obviously an experience firefighter. Is this something they train in all the time . Reporter we dont know how often the training occurs. We understand that the firefighter was with a rookie firefighter when this happened. Henry lee live for us. We are waiting for a press conference from the fire chief of San Francisco. When that begins we will carry it live. Election day is less than a month away. It is already a recordbreaking election in santa clara county. It is seeing a big surge in Voter Registration. The county surpassed 1 million registered voters. They represent 83 of eligible voters in santa clara county. According to the countys registrar of Voters Office this is a significant increase from the last president ial election. When the county had just under 800,000 registered voters. We have reached this milestone for several reasons. That is because of the dmv automatic Voter Registration. In the high interest in this novembers president ial election. And all of the work to register people done by our office at the registrar of voters and by our Community Partners who have helped us get out the word to get out and register and vote. There is also a surgeon registered voters statewide. According to the secretary of state Voter Registration is up 84 in california. That is about 3 million more voters than there were 4 years ago. Director of the cdc has given the all clear to Vice President mike pence to take the stage in utah. Nice debate with, harris. After the president s and many people close to him contracted the coronavirus. Lauren blanchard with some of the Health Precautions that are being taken tonight. Reporter the two Vice President ial candidates mike pence and Kamala Harris ready to take the stage wednesday night in Salt Lake City utah. For the first and only vp debate. We know mike pence is a good debater. Is a skill debater. He gets a lot of credit because he speaks in complete sentences. Reporter former Florida Attorney general has been playing the part of senator harris for Vice President pence is mike the date mock debate prep. She is smart. She is articulate. She is very tough. She is a great debater. Prosecutors debate that is what you do every do in a every day in the courtroom. Reporter is more positive cases are reported among white house staff and capitol hill precautions are being taken for the debate. There will be no handshakes. The candidates will be spaced more than 12 feet apart. Separated by plexiglass. Audience members and staff will be covid 19 tested and must wear masks. The candidates will no doubt he asked about the handling of the virus. Mike pence is the head of the Coronavirus Task force. Is the head of the group that is responsible for getting this fire is on the control which they failed to do. Neither joe biden or anyone on his staff can point to anything and say they would do one thing differently. All they do is criticize from the sidelines which is easy to do. We dont bear any responsibility. Reporter joe biden watch the debate from his home state of delaware. While President Trump remains quarantined at the white house. President trump spoke out from the white house this afternoon saying the experimental drug he took for the coronavirus should soon be available to everyone for free. In a video posted on twitter he said the antibody cocktail he received last week made him feel better immediately. He said he has now authorized emergency use of the drug. Saying there are hundreds of thousands of doses that are just about ready. I want everybody to be given the same treatment as your president. Because i feel great. I feel like perfect. So i think this was a blessing from god that i caught it. This was a blessing in disguise. I want to get for you what i got. And im going to make it free. White house physician doctor shawn conley said the test have now detected antibodies in the president s system. Which regeneron said likely came from the treatment. The president has been tweeting about more economic aid for the u. S. Economy. Hours after calling off negotiations for a possible multitrillion dollar aid package. The president tweeted he was support a smaller standalone bill another round of direct payments. The president also said he would support a bill to help shore up the airlines. Speaker nancy pelosi said she talked with treasury secretary Steve Mnuchin today about the airline bill. Which House Republicans blocked last week. On wall street today stock shot up on the hope for more economic relief. The dow jones was up 530 points. Nearly 2 . The nasdaq gained 210. The s p was up tech shares let the rally. Stocks were down yesterday after the president called for an end to talk to me stimulus bill until after the election. New stimulus checks the stock market and the economy will continue to be big talking points as we countdown the final four weeks before the president ial election. Financial analyst James Mcbride joins us. Lets talk about the stimulus talk. President trump abruptly took them off the table. Then reverse course last night. Do you think lawmakers will come together before the election for the American People and reach some type of agreement with stimulus relief . I do. Just yesterday he said the stimulus is essential to avoid a prolonged recession. I think it is fair to say the economy is screaming for a stimulant. As you know we are going into the president ial election with the highest Unemployment Rate ever. The airlines are furloughing tens of thousands of people. We have retailers and restaurants declaring bankruptcy. And many Small Businesses are closing permanently. I think it is fair to say the voters want. Why this havent been done so far. When you talk about the stock market saw it shoot up today. The dow jones of 500 some points. Is there a way to look within the market . Can trading activity give us any signal as to how the president ial race may turn out . I dont think so. I think with the economy what the market is doing is trying to decide what is going on and find what it once. There is some concern when it comes to taxes stimulus and things like that on the part of wall street. Wall street really wants is. It doesnt want a bush v gore situation. A situation where might number one what the market is hoping for decisive victory. May be divided government. Yesterday Goldman Sachs came out with analysis the said biden is ahead. Democrats the house. Guess what the stock market it will do well. No matter who wins the election there will be a stimulus. I was going to ask you there to say how the market might react if we have a Biden Victory or a trump victory. Again i think if the victory is the siphons. We can get beyonce decisive. I think the market will move forward. Quite rapidly. As we talked about for a vaccine is essential. If we can get some treatment some therapeutics. Once we get this election behind us i think the divisiveness will subside. In the market can move forward. If you think about it since march 23 this market is pretty much recovered. It is going in the right direction. I really do think we are in the full market. The direction is behind us we will continue moving up. Im very confident about 2021. As much as i am happy to get rid of 2020. We all need to get through 2020. James mcbride will let that be the last word. Thank you for being with us. We appreciate it. A number of governor newson staff tested positive for the 20 virus. The Governors Office said in a statement the staff member had not interacted with the governor or with staff that routinely interacts with the governor. Another state employee who works in a space shared with some staff from the Governors Office also tested positive for coronavirus. We are told that person was not in contact with the governor. Or his close staff either. The governor said today he himself has tested negative. A glimmer of hope for east bay parents. Oaklands mayor gives a possible timeframe to begin bringing students back to school. The former Minneapolis Police officer charged in the death of George Floyds release from jail after posting bail. Coming up we go live to minnesota for reaction floyds family. Getting to the bottom of those rolling blackouts around california. What a report found out about where California Power generators were sending their electricity. Cooler weather in the forecast. Today it cooled off quite a bit. Tomorrow temperatures drop again. We will let you know what to expect coming up. This election, all californians will be able to vote safely from home. Every active, registered voter will receive a votebymail ballot with a unique barcode. You can track it using wheres my ballot . And youll receive automatic notifications by text, email or voice call to let you know the status of your ballot once you mail it, drop it off at your polling place or at a drop box. Vote by mail ballots. Simple, safe, secure. Counted. Learn more at vote. Ca. Gov tonight the former Minneapolis Police officer accused of killing George Floyds is free on bail. In response the governor of minnesota has mobilized the National Guard out of concern for possible violent protests. Fox news Courtney Godfrey is live tonight in minneapolis with reaction from floyds family. Reporter just over four months after being booked into prison Derek Chauvin posted bond. He was held at a maximum security prison just about 40 minutes from here in minneapolis. He has been there since may 31. We are told he is being held in segregation. To keep him safe from the other inmates. Documents show he was released at 11 22 am after posting 1 million bond. Signed by a Bail Bonds Company out of northern minnesota. He was arrested and charged with thirddegree murder just four days after the memorial day death of george floyd. The charge was later upgraded to seconddegree murder. He also faces charges of third degree murder and seconddegree manslaughter. After a bystander video showed the officer kneeling on floyds neck as he repeatedly told them he couldnt breathe. Floyds aunt reacted to the news. Reporter it is something im not happy with. Im not pleased with it. But i know i have to accept it. This is what the judge allowed to happen. I have to do my best to respect it. Reporter conditions of Derek Chauvins release require he stay in the state of minnesota. His trial is set for march 8. We mentioned that the government has mobilized the National Guard. Have there been any protest so far . We remember the protest after George Floyds death. They became violent at times especially late at night. An indication that is happening so far . Reporter as you mentioned we really see that activity after dark in the sun just went down in minneapolis. We dont know what the night will bring. We know there are some protesters on the move down chicago avenue which is the street which george floyd was killed on. We have not seen any National Guard yet tonight. In our experience they usually sit back and dont come into the city until they are needed. Lets hope things remain peaceful. We appreciate it. We bill police have released files and details of the investigation into the Police Shooting death of breanna taylor. It includes body camera video showing the confusion after police raided her apartment in march. The files also included investigative letters Interview Transcripts pictures crime scene reports and search warrants. Last month a kentucky grand jury decided not to charge any of the Police Officers in louisville with her killing. The operators californias power grid have issued a preliminary report on why they say they were forced to conduct rolling blackouts on august 14 and 15. It affected 800,000 homes and businesses. Ktvu tom joins us with the details that revealed the major surprise today. Reporter it is a major surprise. The superhot days when we have to rolling blackouts. Some california generators were actually sitting sending their power out of the state. We asked Uc Berkeley Energy economist and power grid board member borenstein were california generators really exporting power as people were plunged into darkness . It appears some of the energy was being exported. That is not unusual. Reporter most days california has enough electricity makers to supply the state. Because grid operators regularly easily and economically by any extra needed power from outofstate suppliers. These days however we rely much more on solar and wind power and Greenhouse Gas emitting fossil fuel power plants. This was a very unusual event. It was an extreme temperature it then. This was not the greatest energy demand. What needs to happen is we need an investigation by an independent Authority Like the attorney generals office. Which is what recommended. To get to the bottom of who is at fault. Why the did not do the proper planning. Why there were plans mysteriously offline. Power grid operators say three things came together to cause the blackouts. Extreme heat and covered the entire west spiking demand especially for air conditioning everywhere. The peak demand hour we did okay. The problem was a couple hours later. When the sunset. And demand wasnt quite as high. It was still very high. Reporter when the sunset the entire Solar Power System went offline as unfortunately so did a natural gas power plant that was supposed to pick up the slack. This isnt a problem solar. It is a problem with planning for wind solar is going to be produced. Reporter with so many fossil fuel power plants now retired the remaining fossil fuel power plants plus wind and hydroelectricity did not meet the demand. Third some companies and agencies that supply power to consumers and businesses underestimated how much power to order to meet increasing demand. Some of them did not demand enough electricity to be produced the next day as they actually need it. Reporter as rolling blackouts happened some california generators exported power to other states that had ordered it from them the day before. There are generators in the state have contracts to sell to users out of the state just like they are generators out of the state that have contracts to sell into the state. In an area and era of Climate Change we need far better planning. We need more renewable resources. And we need many more systems to store power for use during extreme peak events. That is the nature of Climate Change. Are they talking about making some changes here . On those superhot days when we need the power and they do something so they are not sending power out of the state and we can keep it here for californians who need it . Reporter you dont want to over order power because it is use it or lose it. They need to be more aggressive about how much of the power he will order within the state of california which is the giant economy in the west and the entire nation. That is going to change. The other thing there is a lot of new technologies being developed that can act really as batteries. When power is generated when it is not needed so much it can actually be stored not in actual batteries. Theres a little bit of that. But in other ways to keep the power in reserve so you can then use it when it is most important to use it. Those changes are coming. As we continue to go to renewables and more of those. You will see those take effect for right now this could still happen. We hope they get the new technologies up and working fast. I think we can agree those rolling blackouts are a Big Inconvenience for everyone. Absolutely. Tracking the weather their quality not that great today. It was a little better yesterday. Look at all the orange and windsor yellow up around marin county. Warrants in San Francisco. The smoke just lingering. We had a few green in the Santa Cruz Mountains and around point raise bodega bay. The green area they a