Miguel Carriedo was sentenced to 15 years to life in prison.
That crime happened back in February of 2016.
The girl was walking home from school when a group shoved her in a trunk and drove her to a remote part of Fresno County.
Prosecutors say they assaulted her and left her tied to a tree.
In March, Sandra Garcia was sentenced to life in prison for recruiting her two sons and a cousin to kidnap the girl.
The teen was her then-boyfriend's daughter, and Garcia was upset after he evicted her.
Miguel Carriedo was the cousin involved.