In March 2015, Debra D. Sheppard, 33, was shot to death in her mobile home in Dorr Township, Michigan, along with her 12-year-old daughter Emma McComber and her 10-year-old son Corey LaValley Jr. The bodies were discovered on March 9, and the next day the home was set on fire in an apparent attempt to conceal the crime.

Investigators focused on Debra’s ex-boyfriend and the children’s father, Corey LaValley, after he allegedly confessed the killings to his brother and father, who notified police. Prosecutors said the motive involved a dispute over the paternity of Corey Jr.; Debra had recently told LaValley he was not the boy’s biological father. LaValley was arrested and charged with three counts of murder and one count of arson, later pleading no contest to three counts of second-degree murder. He was found competent to stand trial and was sentenced to a lengthy prison term; he reported having no memory of the killings or the fire.

Emma’s father had previously contacted child protective services with concerns about her safety when LaValley was present. Does anyone have information about the family or the events leading up to March 2015 that could add context to this case?