Former First Lady Michelle Obama has been left “heartbroken” as she and her husband Barack Obama opened up about a “devastating loss”. Michelle, 60, released a statement alongside Barack, her brother Craig and his wife Kelly about a major development facing the family. Marian Robinson, who lived in the White House with the Obamas, died at the age of 96 in Chicago yesterday. The family said: “As a sister, aunt, cousin, neighbor, and friend to so many, she was beloved beyond words by countless others whose lives were improved by her presence. “She passed peacefully this morning, and right now, n…