Summer Wells was last seen at her home in Beech Creek, Tennessee on June 15.
Alleged Carjacker Returns Toddler to Mom After Realizing Girl Was Inside Car He's Accused of Stealing
The child was returned unharmed to her mother.
The father of the baby boy is also a person of interest in a house fire set in a neighboring town.
Knoxville authorities are asking the public to avoid the area as the investigation remains active.
Some think the girl in the video, who silently stares at the camera and appears to have black eyes, may be Cassie Compton.
Minnesota Boy, 14, Is Killed by 'Extremely Aggressive' German Shepherd at Family's Breeding Farm
The dog had been purchased from Poland six months ago.