On June 14, 2015, sheriff's deputies in Greene County, Missouri, United States, found the body of Clauddine "Dee Dee" Blanchard face down in the bedroom of her house just outside Springfield, lying on the bed in a pool of blood from stab wounds inflicted several days earlier.

Mackenzie was last seen by family in the 300 block of Trent Crescent (Saskatoon, Canada) on December 21st, 2020. Her family members and police are concerned that she may be in a vulnerable state.