One year has passed since Emerall Vaughn-Dahler and Ignacio Gutierrez-Morales were found shot and killed inside the American Elm restaurant, and the person responsible remains a mystery. Wednesday, April 24, marks one year since the double homicide in Denver's Highland neighborhood. Vaughn-Dahler and Gutierrez-Morales were working at the restaurant at the time. "It’s surreal," said Danica Woolard, Vaughn-Dahler's sister. "It’s still almost still hard to accept that she’s not here." Read more: https://www.9news.com/article/news/crime/denver-american-elm-shooting-2-killed-one-year/73-1ee73879-3d67-43bb-b2ba-b98b874524e6 ----- More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.