A notorious serial killer who murdered 10 people is cooperating with a new book about his heinous crimes to help the victims families financially.
Denis Rader, who dubbed himself the BTK killer, which stood for "bind, torture, kill" terrorized Wichita, after beginning his killing spree in with the murder of the Otero family in 1974.
He went on to slaughter six more women, killing two in 1977 and three more in 1985, 1986 and 1991.
Now he claims he want to help their relatives.