TheGrio.com has obtained clips from the upcoming Smithsonian Channel documentary MLK: The Assassination Tapes.

The film will air rare footage of the days leading up to Dr. Martin Luther King’s assassination and the riots and mourning that took place immediately after. The clips theGrio.com has obtained show King arriving to the Lorraine Motel in Memphis, Tenn. the night before he was assassinated.

There is also detailed audio recordings of local police scrambling to secure the hotel after King’s shooting was first reported.

MLK: The Assassination Tapes premieres Sunday, February 12, 9 pm (ET)