A week ago spencer treated ebola patients in new guinea. Since then he has traveled the city, using public transportation. His girlfriend and two of his friends are being quarantined. In canada authorities are now piecing together the parliament attack. After an arrest in 2011 michael zehalfbibeau. A standing ovation in parliament. Oh, no, it is coming this way. A powerful storm system through Washington State spawned a tornado. It was carnage, metal, bricks, everything. Three people were killed and two were hurt when a plane and a helicopter collided midair. In maryland. A new York City Police officer remains in Critical Condition with a hatchet wound to his head. Police shot and killed the attacker. Were still attempting to identify what his possible not immay have been. A lava flow. Its less than a mile away. Bikers taunting a california highway patrol. An officer tries to pull them over for popping wheelies. All of of that kfc going the next level with the zinger double down king with a burger smashed up in there. Oh man. Its sanders for the second time. The touchdown to the broncos. 35 to 21, denver takes it. And all that matters. Two secret service dogs have been cleared to return to duty after they were kicked and punched by a white house intruder. Fortunately for the intruder, dog bites are covered under obamacare. On cbs this morning. Do you think people realize too much on your looks and dont realize that youre an actor . Next question. This mornings eye opener presented by toyota. Lets go places. Welcome to cbs this morning. Were tracking a new ebola infection in the United States, this one in the nations largest city, new york. Dr. Craig spencer tested positive for the disease last night. Just a day earlier he rode the subway and met friends with in brooklyn. Those friends are quarantined this morning. All is quiet at the doctors apartment this morning but the cdcs go team is in the city to make sure the virus is contained. Jericka duncan is outside Bellevue Hospital where dr. Spencer is in isolation. Good morning. Reporter good morning and good morning to our viewers in the west. Dr. Craig spencer returned from west africa one week ago. He was with a medical Organization Doctors Without Borders helping ebola patients. When he returned here to the United States, he monitored any possible symptoms of ebola. On thursday, new York City HealthOfficials Say he developed a fever of 100. 3 and immediately called for help. [ sirens ] dr. Craig spencer made the eightmile trip from his apartment to the hospital in an ambulance thursday afternoon. Workers followed all transport protocols. Reporter this video from the New York Post shows the medical team covered head to toe in protective suits. The 33yearold emergency room doctor returned last week from guinea, west africa. He flu from guinea to brussels then on to new yorks jfk airport. Doctors without borders say spencer had been taking his temperature twice a day, saying he engaged in regular health monitoring. He was very alert to signs and symptoms of ebola coming from a place where ebola truly ravaging the population. Reporter on thursday morning, spencer began complaining of a high fever, nausea and exhaustion. The day before despite feeling fatigue fatigued, he went on a threemile run, went on the subway, went bowling and rode in an uber car. There were some who came in contact with him, a fiance and two friends. The uber driver was determined not to be at risk. Were doing contact tracing. You know, who this person may have been in contact with. Reporter new York City Health officials have been handing out pamphlets filled with facts on ebola, trying to address any anxiety in his harlem neighborhood. A dense place a lot of people on top of each other. But the more facts you know the less frightening the situation is. Reporter this hospital is a designated ebola treatment center. So Health Officials here say they were prepared. New york states acting Health Commissioner says he believes dr. Spencer will have a quick recovery. Jericka, thanks. Our chief medical correspondent dr. Jon lapook is with us this morning. Good morning. Good morning. Put this in perspective. Well i think i heard people yesterday saying oh here we go again, its going to be just like dallas. It couldnt be more different than dallas. In dallas, mr. Duncan walked in with ebola, he was initially sent away he came back. They really were not prepared. You have a doctor selfmonitoring. The minute he had symptoms he put himself in isolation. He went to bellevue. A designated center for treating ebola in the city. Theyve been drilling for this for weeks, so it really is different. Youre confident bellevue is equipped to do this. He will not have to be transferred somewhere else. Thats what people are telling me. Of course, not as trained as the big four centers like emory, nebraska, montana and nih that have been training for years. But we learned something new about his fever, his temperature. We were told yesterday his temperature was 103. It was actually 100. 3. To me, thats even more reassuring. When you think of it mr. Duncan in dallas was sent out with 103. Even he with 103, after a couple of days with contacts 48 of them tested negative so thats reassuring. But he was feeling sluggish before. Yes, this is a question you had wisely asked me this a few days ago. When does it actually become symptomatic. And contagious. And contagious. Fortunately early on in the disease, it doesnt seem to be contagious. We learn today, the day before he was diagnosed with ebola, he went on a threemile run, he rode the subway he went bowling, he took an uber. He was all around the city. Right but should people be concerned . I think we have to go back to the science and what is known from 40 years of experience and you do have to have direct contact with body fluids to be infected. And if it were spread through the air, there would be tens of millions who would have it. That influenza is spread through the air. Jon, thanks. Thank you. Jon spoke with another doctor who knows what this patient is going through. Dr. Richard sacra recovered from ebola. Well hear from him. Thats ahead. Only on cbs is morning. A Police Officer is in Critical Condition after a terrifying hatchet attack. Another is recovering. A man went after them in the busy streets of queens. Police shot and killed the attacker. Vladimir duthiers is in times square where the incident raises new terrorist concerns. Good morning. Reporter good morning. Good morning to our viewers in the west. It was a blindsided attack the officers didnt see coming and now the new York Police Department is looking at a possible terrorist connection. This video released late thursday shows the suspect running down the street and raising a hatchet before disappearing from the frame. His target, four rookie Police Officers walking the beat in jamaica, queens. The male who has not been positively identified charge at the officers with a hatchet in his hand. Reporter the man who is a described by police as a 36yearold dark skinned male was shot by police after striking two with a hatchet. One is in Critical Condition this morning after taking what nypd commissioner bill bratton called a very serious injury to the back side of his head. When asked about a possible connection to terrorism, bratton didnt rule it out. We really cannot say yes or no to that question. Heightened concerns relative to that type of assault based on whats just happened in canada, recrew recent events in israel certainly one of the things that comes to mind. Reporter just before the attack, the four officers were posing for a picture. New york city mayor bill de blasio. With rookie cops starting out their career when the absolute unexpected happened and we just pray for a speedy recovery for each and every one of them. Reporter during the police gunfire, an innocent bystander nearly a black away was hidden by a stray bullet. That woman was taken to the hospital and is reportedly in stable condition. Thanks. Canadas Prime Minister under heightened security because of the terror attack in canada. Were learning more about the man who killed a canadian soldier and then attacked the houses of parliament. Jim axelrod is in ottawa where a city and a nation are still grieving. Jim, good morning. Reporter good morning. Behind me, you can see the makeshift memorial thats sprung up for nathan cirillo. He was standing watch on wednesday when he was shot and killed. And were learning new details this morning about michael zehafbibeau. The gunman who police now say was acting alone. The attack shows the gunman running with the rifle as he makes his way to parliament. Were learning more about the 32yearold muslim convert who opened fire in canadas capital. Busted for robbery in British Columbia in 2011 Court Documents obtained by cbs news paint a picture of a man hoping to be locked away. Speaking during his court hearing, zehalfbibeau said, quote, i want to do another robbery just so i could come to jail, adding, i warn them referring to the canadian police, if you cant keep me, im going to do something just to be put in. He was sentenced to 67 days in jail for the 2011 robbery. For the last two weeks had been living in this mens shelter in ottawa. He was in town dealing with a passport issue but was also hoping to leave for syria. Reporter kevin vickers, the sergeantatarms who chased down and shot the gunman, was back in his role yesterday, leading the procession that opens every session of parliament. A 29year veteran of the Royal Canadian mounted police he did his best to hold back emotion, offering only a head nod as he was greeted with a standing ovation. Following wednesdays deadly attack lawmakers were back to work thursday, unwilling to be intimidated by what they call an act of terror. Here we are, in our seats, in our chamber, in the very heart of our democracy and our work. Reporter about that passport issue you just heard reference to, zehafbibeaus passport had not been renewed. A Law Enforcement official tells cbs news thats because they were concerns he had developed an Internet Connection with radicalized canadian living in syria, prompting concerns about travel. Thank you so much. And Many Americans are wondering if the ottawa shooting could inspire similar violence right here in the u. S. Officials saying theres good reason to worry. Bob orr, good morning. Good morning. Now, increasing concerns about potential copycats here in the u. S. Law enforcement officials are most worried about a home grown violent extremist called a lone wolf sometime who might decide this might be the right time to strike out in the name of isis or another terror group. The threat from these selfradicalized americans is not new. But in recent weeks, weve seen isis propping up the propaganda campaign. Urging attacks whenever and wherever possible. Now isis is on the record praising the ottawa shooting as a good example of what followers should and can do. Sources say the fbi is watching a number of americans, perhaps a few dozen or so who have either tried to go to syria or who have gone and come back home. Those showing the desire to join the jihad are under varying degrees of surveillance and investigation. Meanwhile, officials are continuing to go through the background of the canadian gunman. Theyve looked at travel records. Theyve shown hes traveled to the u. S. At least four times between 2010 and 213. But Officials Say theres no significance to those trips. Sources say also theres nothing in his background so far that connects him in any way to the u. S. To indicate that he had a strong connection to a Global Terror Network or cell. Charlie. Bob, thanks. The parents of a hostage are making a plea. His mother sent a tweet to the terror Group Thursday saying, quote, please tell us what more we can do so that abdul rahman can continue to serve and live his life in accordance with the teachings of islam. Margaret brennan at the state department with how they are getting unlikely support. Margaret, good morning. Reporter good morning, and good morning to our viewers in the west. A senior jihadi fighter seems to be speaking out in defense of the 26yearold aid worker and now muslim. Three weeks ago isis threatened to execute him. Now, a surprising plea has appeared here, on what is believed to be the twitter account of abu omar aquidi. He is the senior fighter from the nusra front, aligned with al qaeda and at odds with isis. In his tweet he claims kassig gave him medical help last year. In the same part of Eastern Syria where kassig was providing emergency aid before he was taken hostage. That post got the attention of kassigs parents and reinvigorated their Online Campaign featuring testimony from aid workers. Like this man, who said he witnessed kassig helping refugees and called on the islamic tweets to release him. But its the tweet that got their attention debating whether its moral to execute someone who helped them. If this is about saving a life or simply competition is unclear. Terror analyst Phillip Smythe is skeptical. Do you think this appeal helps or hurts kassig . I dont know how much pull that really has, but im quite sure that this is, you know its a 3d game of chess and nusra understands how to play the game, as does isis. Reporter but kassigs mother wants the world to know her son is more than a hostage. Hes smart, hes compassionate, has love for all who need help. Reporter in her tweet last night, paula kassig asked for instructions on how to save her son. She has tried to make direct con tangt beforecontact before but has not received any response. Margaret, thank you so much. Isis is accused of using chemical weapons in iraq. 11 iraqi Police Officers went to the hospital last month complaining of dizziness and vomiting. Doctors say the symptoms match chlorine poisoning. The attack happened 50 miles north of baghdad. There are at least two other incidents where officials suspect the terrorists used chlorine. Its a dream for drivers. The gas prices are falling fast. This morning aaa says the National Average for regular is 3. 07. That is the lowest cost in nearly four years. The cheapest gas in the land is in tennessee at 2. 82. California is the highest at 3. 43. Analyst and contributor Mellody Hobson is in los angeles with a look whats dropping the prices. Mel di mellody, good morning. Good morning, norah. Whats behind this drop. Four reasons. First, china has slowed down so the demand is down. Secondly, opec, the oil cartel that produces 40 of the worlds oil, has not been able to drop its supply fast enough to meet the china slowdown. So theres a bit of oversupply out there. Thirdly, the u. S. Dollar has been stronger than any of us expected. Oil is priced in dollars. When the dollar gets stronger, oil prices go down. And last but not least, many states have changed from their summer blend. How long will the factor be in place and how long will the prices fall . No one expected it to change any time soon. The way those economies are growing, well see that kind of slow consistent growth for a while. The question will be opec. They will probably coordinate their production and bring their production down to firm up prices a bit. The wild card always remains areas of the world where oil is produced that are inherently unstable, nigeria, iran, russia. And what about u. S. Energy production . Way up. In the last five years, our production is up almost 50 . That means our dependence on foreign oil has dropped precipitously. So it has been actually a really good thing. Not only u. S. Oil production being up but also our production of natural gas. The interesting thing for all this is the gee political repercussions for iran and russia. Yes. These low prices are hurting them, especially russia. Mellody, thanks. You dont hear about tornados hitting Washington State but one touched down thursday in long view just north of portland oregon. The ef1 tornado buzzed through a sixblock area with winds up to 110 miles an hour. It ripped off roofs but no one was hurt. Its 7 19. Ahead on cbs this morning, the secret Service Guard dogs credited f kind of a quiet start to the day but thats going to all change as we head into the weekend. We have a storm system diving off the coastline but today, we should stay nice and dry in fact probably the nicest day of the week. But get ready for a stormy saturday especially in the morning hours. Temperatures today going to soar into the 70s and low 80s well inland. 60s along the coastline. And as we look out toward the weekend, yeah, some rain coming through tomorrow morning turning to showers on and off. Even the possibility of some isolated thunderstorms. Announcer this National Weather report sponsored by ethan allen. Home of the next classics. Hundreds of new designs arriving now. One of the few americans who survived ebola says it was a close call. When i got my medical records a week ago and really started looking through them i was like, wow, i was right on the edge. Dr. Rick sacra describes how he fought the virus and his plans to return to west africa. The news is back here on cbs this morning. Stay tuned for your local news. Announcer th announcerthis portion of cbs this morning sponsored by toyota. Lets go places. Arted my camry. Picked up someone i hadnt seen in far too long. Went somewhere wed both never been. Did something weve both never done. And was reminded that the most important things in life arent things theyre people. The bold new camry. One bold choice leads to another. Toyota. Lets go places. The yoplait greek tasteoff hits st. Louis, lets find out which blueberry greek yogurt tastes best. Bam that one. in unison its yoplait i like yoplait. Ive