Detroit mother Mitchelle Blair, 36, pleaded guilty Monday to killing her 13-year-old daughter and 9-year-old son and placing their bodies in a deep freezer in her home. Blair openly admitted to beating the children before murdering them. "I don't regret none of this," Blair, who was arrested in March, told the judge Monday, according to The Associated Press. "I don't feel no remorse for the death of those demons." The kids were sexually assaulting her 8-year-old son, she added. Blair has said that if Michigan had the death penalty she would take it. Mental health experts found her competent to stand trial.