Ex-husband of Lindsay Clancy, accused of murdering their 3 children, called to testify in her trial

CNN By Elise Hammond, Andi Babineau (CNN) — Opening statements began Monday in the triple-murder trial of Lindsay Clancy, the Massachusetts mother who has argued she is not criminally responsible for fatally strangling her three young children. The 35 year old is charged with three counts of murder and faces life in prison if convicted.