IME, if he saw Bella blue, it was while she was still alive as he was strangling her. I have a child with a severe seizure disorder, and during those seizures his lips will turn blue/purple, which spreads to his chin and cheeks from anoxia. Once the spasms stop wracking his body and he is able to take a breath, he flushes pink. If a person could not get that breath of oxygen, he or she would not remain blue, but turn white/pale after death. CW would have only seen that blue during the strangulation. Now if he would have said he saw CeCe blue, while she was supposedly being strangled by SW, that would have been more accurate. But he didn't, because it was an entirely fabricated story. So yes, he may want to recant that little detail! MOO.