<b><i>New York Times</i> bestselling author, television personality, and host of the #1 podcast "Paper Ghosts," M. William Phelps is one of America''s most celebrated true crime authorities. In WE THOUGHT WE KNEW YOU, he takes readers deep into the murder of Mary Yoder, a popular wife, mother, and healer in Upstate New York -- telling a gripping tale of a family drama, a determined investigation, and a killer with the face of an angel.</b><br><br>In July 2015, Mary Yoder returned home from the chiropractic center that she operated with her husband, Bill, complaining that she felt unwell. Mary, health-conscious and vibrant, was suddenly vomiting, sweating, and weak. Doctors in the ER and ICU were baffled as to the cause of her rapidly progressing illness. Her loved ones--including Bill and their children, Adam, Tamryn, and Liana--gathered in shock to say goodbye.<br><br>In the weeks that followed Mary''s death, the grief-stricken family received startling news from the medical examiner: