Authorities went on to reinvestigate Diane McDermott’s death. The medical examiner concluded that the gun which was found on the scene couldn’t have been the same one that killed Diane as its caliber was too small (via Irish Central). In addition, Diane’s head wound showed that the gun was “pressed to the back of her head.” The wound was on the left side of Diane’s head, but she was right-handed so pulling the trigger herself would have been impossible based on the angle of the wound.
Statements given by those close to Diane were also examined and Gugliotti was surprised to find out that investigators who worked on the case back then didn’t dig deeper into John Sponza’s narrative of what happened. “Sponza is telling the police that night that he very rarely, if ever, had arguments, yet everyone we spoke to, including Dylan, who was only five at the time, remembered very violent, vicious arguments,” said Gugliotti.
Ultimately the reinvestigation concluded with authorities saying that they have gathered enough evidence to be able to file a murder charge against John Sponza for the death of Diane McDermott, according to the National Post.