MONCTON, N.B. — Canada-wide arrest warrants have been issued for a young man and woman charged in what the RCMP describe as an "extremely violent" murder in Moncton, N.B. Eighteen-year-old Tyler Noel and 20-year-old Marissa Shephard, both of the Moncton area, face charges of first-degree murder and arson in the Dec. 17 death of Baylee Wylie. The 18-year-old man's body was discovered by firefighters after a fire at a triplex on Sumac Street. A third suspect, 18-year-old Devin Morningstar, was arrested following the fire and charged with first-degree murder. He will remain in custody until a court appearance scheduled for Jan. 8. RCMP say it is unknown whether Noel and Shephard are together or if they're still in New Brunswick. "The murder of Baylee Wylie was extremely violent," Sgt. Andre Pepin said in a news release. "These two should be considered dangerous and not be approached." Pepin added that anyone helping the pair evade police could be charged with accessory after the fact to commit first-degree murder.