DENVER (CBS4) – The family of a man killed in the Denver Jail used the Marade to call for justice on Monday.

Marvin Booker died behind bars in 2010. His relatives say the brutality of Denver law enforcement caused Booker’s death and now there’s a civil lawsuit.

Jury selection was supposed to start on Tuesday, but CBS4 Investigator Rick Sallinger learned Denver seems to be delaying the process.

“If Denver would just come to the courtroom and allow the citizens to decide what they did to my brother was okay, I believe we can go away and my brother can go and rest in peace,” said Rev. Spencer Booker, Marvin Booker’s brother. ” We know for a fact that it was a murder that night and they need to face us.”

A video obtained by CBS4 shows Marvin Booker just before his death. City officials said in the past he was still resisting arrest when officers used a stun gun on him. They also say Booker used profanity towards a female deputy.