One year ago today, Dr. William Petit became the sole survivor of a horrific home invasion that took his wife of 22 years, the couple's two daughters, and left their upscale Connecticut neighborhood reeling in shock. While Petit can't erase the memories from the day that changed his life forever, he did do something that many other victims of tragedy do to cope with loss: He demolished the site where the killings occurred. Last month, Petit razed the home in which his wife, Jennifer Hawke-Petit, and daughters Hayley, 17, and Michaela, 11, had lived. The three were senselessly murdered when two perpetrators allegedly doused their bodies in gasoline and lit the house on fire after robbing them. "[Petit] didn't want to continue to have the...