|Disappeared||October 11, 2015|
|Missing for||4 years|
Marken is believed to have initially left on her own accord, considering she has run away twice before, each time being found with her friends. She was not allowed to have a cell phone, but after her disappearance, it was discovered that she was using social media to contact older high school-aged boys and other strange men. Mackenzie may use the last name "Doll" in place of Marken. It is possible she fell victim to human trafficking.
- She has brown hair and brown eyes.
- She has facial freckles.
- She may have shallow cut marks along her arms, legs, and chest.
Clothing and accessories
- She may have been wearing black combat-style boots.
- She may have been wearing purple glasses.