The state's highest court on Monday upheld the murder convictions of a Colorado Springs woman who let her three children burn to death in the hopes of cashing in on insurance payoffs. Deborah Nicholls was found guilty on more than a dozen counts in 2008, roughly five years after the deadly blaze took the lives of 3-year-old Sierra, 5-year-old Sophia and 11-year-old Jay Nicholls.