The man accused of helping the Permian High School imposter says he didn't do it.
20-year-old Jabari Caldwell has pleaded not guilty to four felony charges.
He's accused of helping his friend, Guerdwich Montimer, enroll in school with fake papers.
Caldwell claimed to be Montimer's half brother.
22-year-old Montimer posed as a 16-year-old student and played basketball for Permian High.