investigators believed greg mulvihill was being hunted. y dangerous information but instead, lead greg into an ambush. scouring the scene police did not find the gunmen, but they did track down a promising clue. one that was about to lead detectives to a startling discovery. once again, here's andrea kaine with the night of the new moon. >> my friend has just been shot. >> greg mulvihill had been shot and barely survived. someone had lured him to the scene of the crime was a call from a burner phone. now, police gathered around sergeant darbie ernst computer scene to see images of the person who had bought the burner. >> who was? it >> it was diana lovejoy. >> diana, greg soon to be ex-wife. >> is this a smoking gun? getting this photo of diana lovejoy? >> it definitely points us in a direction. there is a lot more to be done. >> sergeant ernst's team search for more evidence in diana's home. >> we were able to locate the clothing that she was wearing when you purchase the phone. >> police had enough to arrest diana and bring her in for que