Violence erupted in Albuquerque, New Mexico on Sunday during a confrontation between hundreds of protesters and police. The 12-hour protest stemmed from frustration over 37 police shootings, 23 fatal, since 2010.

Dramatic Video Gives Firsthand Look at Deadly Police Shootout

Fox News’ William La Jeunesse reported that protesters threw rocks, blocked traffic and trapped one officer in a car. Police responded with tear gas and billy clubs. At least six people were arrested.

Videos of the police shootouts have made the rounds on the Internet, including the one above captured on a police helmet camera. It shows 38-year-old James Boyd, a mentally ill homeless camper with a knife, during what appeared to be a peaceful surrender. When Boyd began to gather his belongings, police opened fire, fatally killing him.

Former Police Officer Samson Costales was in the crowd of protesters seeking justice for Boyd. He believes Boyd didn’t have to die and said, “The methods [cops] used were not methods I’d ever been taught.”

Albuquerque Police Chief Gorden Eden recanted his "premature" statement that the Boyd shooting was justified. The city’s mayor, R.J. Berry, agreed that Eden made a mistake.

La Jeunesse reported that the city has paid out $15 million dollars to three victims so far. The department is under investigation by the FBI and Justice Department.