|Family|| Angela Tolliver (mother; deceased)|
Garrett Howard (stepfather)
Unborn baby (fathered with Garrett Howard)
|First Appearance||"The Good Girl"|
Mackenzie Tolliver is a teenage girl who was raped by her stepfather Garrett Howard, which resulted in her pregnancy.
Howard murdered her teacher Quentin Dreyfus after he suspected Mackenzie was in a romantic relationship with him. Mackenzie then became a suspect in his murder, but was cleared when Howard confessed. (SVU: "The Good Girl")