. >> reporter: north carolina physician mitchell hardison was a popular family doctor wi a secret. >> all of these guys were doctors, ievthis photo. they were my dad's closest friends, he wouldn't have talked deout that with them. >> reporter: he waessed, his daughter anna says. >> the stigma around mental illness and medicine is so strong that i don't even think he would admit it to his closest friends. honestly, i don't even really know if he admitted it to himself. >> reporter: hardison killed himself three yes ago. he was among medical doctors who take their own lives at a highea rate cd to the general population. a landmark 2004 harvard study found male physicians, were 40% more likely to die by suicide. and female physicians, were 200 percent more likely to take their own lives. research shows long work days, s constaep deprivation, a sense of guilt and a fear of showing weakness are factors. >> i am a killer. that's a fact.>> eporter: anesthesiologist alex hellman felt like his actions contributed to a patient's death after he replaced a breathing tube. >> there's always a sens

at the time, only doctor hardison's family knew he was sick. i he was 100% positive th he came forward and said he needed help that there would be a reprisal of so sort. >> reporter: hardison's daughter says her father had fallen victim to a medical system that he felt discouraged him from seeking psychiatric care. hardison worried if he got treated for his depression, he'd have to disclose it when he renewed his medical license with e board. at that time, north carolina asend whether doctors had be treated for mental issues on their application for a medical >> since the medical board deals with your licensing, there was a ar that if you sort of admitted that you neededd elp it wodermine who you were as a doctor and they would start digging into things bat hadn't evn done incorrectly and that would just result in like u earing your name and losing your license or ow just possibilities like that that were terrifying. >> reporter: katherine gold at the university of michigan studies doctor suicides. her research shows that mental health question

maybe if you go to a country where she hardison is more accepted but not here strong place for him it's been said to me that the students in this country the reported cost of the security operation to have him be out of jail is said to be at a whopping two million pounds a year compared to the fifty thousand pounds a year it would have cost to keep him in jail reaction to this was also very swift to follow it's crazy to put the public in danger and spend two million pounds a year monitoring extremist anjem choudary we could be following australia's lead to keep him locked up the extensive list of constraints on un jim choudhry is welcome that said the fact that he's being released at all and that's imposing these constraints will cost the taxpayer two million pounds per annum is a bore and those argue mother wise are almost as dangerous as here's the release of anjem choudary who claims some of those citizens are foreign this in their own home is a threat to our security is betraying all of us and we need to defend all communities in our nation we need a new treason act indeed this coul