The accused Long Island puppy love killer charged with gunning down his ex in a botched murder-suicide will be tried for murder as an adult, a Suffolk County judge said Wednesday. In the first images since the cowardly Nov. 26 slaying of Emily Finn, alleged gunman Austin Lynch, 18, wore a bandage across his nose from a self-inflicted shotgun blast, sporting a green-and-white striped shirt and a peach-fuzz beard and mustache.