9NEWS Investigates has learned the man Denver Police believe killed a cellmate early Monday morning inside the Denver jail is a person of interest in a pair of fatal stabbings in Aurora the day prior. Denver Police arrested Ricky Lee Roybal-Smith Monday morning after, investigators said, Roybal-Smith attacked and strangled his cellmate inside the Downtown Denver Detention Center around 2 a.m. Monday. Read more at: https://www.9news.com/article/news/crime/denver-jail-death-aurora-stabbings/73-0b578321-088b-416e-a1f2-8d58b20687d6 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 X: 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.