>> mr. rodger, although deeply disturbed, he was able to put on a front, as it were, and convince them and obviously convince a lot of other people that he didn't have problems that were so severe that it would require some fairly extreme intervention by mental health professionals. he obviously had been treated for quite some time by mental health care professionals. he had been prescribed medication, and he had a severe underlying mental illness. >> lou, there was something else that criminologist james fox said, and this will stick with me. he said there are no red flags, quote, only yellow flags that turn red after the blood is spilled. do you agree there's no red flag? >> no, i don't think with that