"I'm sorry, goodbye," Josh Powell wrote in an email to his attorney just before he apparently ignited an explosive fire Sunday that took not just his life but those of his 5- and 7-year-old sons, authorities say.
The tragic events at Powell's home in Graham, Wash., came nearly three years after the disappearance of Powell's wife Susan and the emergence of Powell as the only "person of interest" in the case. Throughout, he maintained his innocence.