but as dr. carroll points out, it's even more addictive if you're a teen. >> teenagers have a developing brain, and during that developmental period, you are much more likely to get addicted to things like nicotine. >> to understand what being addicted to nicotine means, you need to understand what happens when your body stops getting nicotine. >> so when people quit smoking they will often experience what we call nicotine withdrawal. that is that, you know, they're used to having nicotine on board, and then when they quit smoking, their body sort of has to get used to not having nicotine. so we call this withdrawal. >> when you go through withdrawal, you can get cravings. a craving is your brain causing you to want more. >> so with nicotine, you get a physical craving for another cigarette. >> that craving makes it hard to think about anything else. to give you an idea, we asked adults who smoked to describe what nicotine withdrawal feels like. >> it was really hard. >> i've quit about three ti

. >> in fact, dr. carroll says it can be deadly. >> well, if you have asthma, you shouldn't even start smoking, but if you have asthma, and you smoke, you should quit as soon as possible. you are taking your life into your hands -- smoking -- if you have asthma. >> but here's something else you need to know. >> even if you don't have asthma and you're not a smoker, if you're around a lot of secondhand smoke, meaning you're breathing other people's smoke cigarette smoke, that increases your chance of developing asthma in the future and having asthma attacks, too. >> clearly, smoking is bad for everyone, but it's especially bad if you have asthma. and even if you don't, just being around those who smoke could trigger an asthma attack. the bottom line is simple -- when it comes to being able to breathe, smoke is no joke. >> sooner or later, it comes our way -- stress. daniella gets some expert advice on how to handle it. >> it shouldn't come as a surprise that the more nervous you feel before taking a tes

jason carroll reports. >> reporter: for a time dr. fareed fata lived in a tony mansion. when this woman started feeling ill, she news exactly -- knew exactly where to go. that first visit she will never forget. >> he went over the results that he said he had, that i had mds, a terminal cancer of the blood, and that -- >> terminal he did say -- >> it is a terminal disease. >> her story is similar to dozens of other patients prosecutors say fata told they too had cancer and needed immediate treatment. and this man who was diagnosed with a rare form of blood cancer in 2010. >> your mouth drops. your heart sinks. >> imagine not knowing how long you live and after years of chemotherapy finding out your doctor lied. you never had cancer at all. >> what i wanted to do to him right now, i couldn't repeat. unbelievable. >> you were under treatment for three years under this doctor. >> yes. >> three years later, you find out -- >> it's a lie. it's all a lie. >> relief at learning they did not have cancer turned to rage for hundreds of former patients of dr. fata like esther and so

jason carroll reports. >> reporter: for a time, dr. fareed fata enjoyed the popularity to match his lifestyle. he lived in this tony mansion in michigan. when this woman started feeling ill in 2010 she knew exactly where to go. that first visit she will never forget. >> he went over the results that he said he had, that i had mds, a terminal cancer of the blood, and that -- >> terminal, he did say -- >> it is a terminal disease. >> her story is similar to dozens of other patients, prosecutors say fata told they too had cancer and needed immediate treatment. people like robert sobrera and this man who was diagnosed with a rare form of blood cancer in 2010. >> your mouth drops. your heart sinks. >> imagine not knowing how long you live and after years of chemotherapy, finding out your doctor lied. you never had cancer at all. >> what i wanted to do to him right now, i couldn't repeat. unbelievable. >> you were under treatment for three years under this doctor. >> yes. >> three years later, you find out -- >> it's a lie. it's all a lie. >

tonight the question, had police acted soon earn, would dr. crews and her family still be alive? in a news conference today police chief galen carroll said -- >> the modesto police department did not drop the ball on this. like i said, when it comes to homicide investigations, you only have one shot to make your case. >> reporter: outside her home and at a memorial for co- workers amanda was remembered. >> and because of her i have my 1-year-old daughter, my miracle baby. >> reporter: now the modesto police department maintains all communication from that independent forensic examiner on thursday was verbal. there was no written record and only a very small number of people knew that they were about to issue an arrest warrant for martinez in christopher's death. they do not think that he knew ahead of time what was about to happen. in modesto andria borba, kpix5. >> the suspect martinez is in the santa clara county jail tonight. he's been charged with the little boy's murder and will be sent back to modesto to face charges in this within's killings. >>> -- weekend's killings. >>>

i also wrote a piece called "dr. king goes to hollywood," which "the daily beast" published on january 2, 2015. that same day, i received an e-mail from ava. she was shocked and could not understand why i had written that bad piece. i wrote her and i said, please, understand that i agonized for days about what to do. what stuck in my mind was the young woman i wrote about going student group who had been so badly beaten. this was just not the full story of selma without those students and those teachers. i wished her the best of luck and i was confident her career would flourish, as it has. i never received a response. a few nights later, i saw "selma " again and i saw no reason to change my mind about the flaws. i was ready to leave my wife loves to watch credits right to the very end and they ran for a long, long time. and there at the and was a section labeled "the director wishes to thank." very small, though, so we peered and there was -- what i later learned, her parents, david's parents, john lewis, andrew you