. >> reporter: but author jeff gwinn says there's only one explanation for the life of charles mansonrles manson was born evil. >> reporter: in 2013, gwinn landed exclusive interviews with manson's sister and cousin. >> little charlie was taken in by loving relatives. his grandmother. his uncle. his aunt. his cousin joanne. but he always had people who loved him. the problem was that charlie himself was a rotten little kid from the word "go." >> reporter: and coming up tonight on our manson special, we also have an exclusive interview with star, a 25-year-old woman who says she is married to charles manson. we also talked to vincent bull lohse, the prosecutor who put manson away. a lot of fascinating stuff. hopefully people can watch. >> i will be watching. that, i will tell you. the full documentary on charles manson tonight, cnn, 7:30 eastern. >>> american fighter jets in iraq given the green light to go after isis targets. here's the question, though, what could be the impact on president obama's legacy? we'll go to the white house for the latest on that. ♪ [ woman ] if you have mo