Chilling video has emerged of gun-toting Black Panther members chanting anti-police slogans at a protest in front of a Texas county jail two weeks before the cold-blooded slaying of a local sheriff’s deputy, Breitbart News reports.

According to Breitbart, one march leader can also be heard threatening: “You’re gonna stop doing what you’re doing, or we will start creeping up on you in the darkness.”

The protest took place Aug. 12 at the Waller County Jail where inmate Sandra Bland took her own life in July by hanging herself after her arrest following a traffic stop.

She was accused of making an illegal lane change and assaulting a police officer.

Other chants heard in the video included: “The revolution is on… Off the pigs,” and “Oink Oink… Bang Bang.” Harris County deputies had been asked by the Waller County Sheriff to come out to help keep the peace, Breitbart reports.

Source: Armed Texas Black Panther Protesters Threatened Police Slayings