Elijah McClain memorial

A makeshift memorial stands at a site across the street from where Elijah McClain was stopped by Aurora Police Department officers while walking home on, Aug. 24, 2019.

Colorado Attorney General Phil Weiser announced Friday his office has opened a grand jury investigation as part of its independent probe into Elijah McClain's death.

The investigation into the August 2019 incident of the Black man's encounter with Aurora police that left him dead began after an executive order by Gov. Jared Polis.

“Our investigation will be thorough, guided by the facts and law, and worthy of the public’s trust," Weiser said in a news release. "In order to maintain the impartiality and integrity of the process, we have no further comment at this time.”

The 23-year-old's death has now made international news as Black Lives Matter protesters across the United States have called for justice for McClain.

McClain encountered officers in August 2019 while he was walking home after police had received a call about a person behaving strangely, but were told McClain did not appear dangerous.

When Aurora Fire and Rescue personnel arrived, paramedics diagnosed McClain with excited delirium and gave him a 500mg dose of ketamine. He never regained consciousness and was pronounced brain dead on Aug. 27 and taken off life support on Aug. 30.

Dave Young, the 17th Judicial District Attorney, announced he would not seek criminal charges against three officers involved in the incident. Young is term-limited and did not seek re-election in November. Brian Mason is the district attorney-elect for the 17th.

"I support the Attorney General's decision to open a grand jury investigation into the death of Elijah McClain," Mason told Colorado Politics. "And I am willing to assist the Attorney General's Office in any way I can."  

Mari Newman of Killmer, Lane & Newman, who is representing the McClain family in a federal civil rights lawsuit filed against the city of Aurora and 15 other defendants, said in a statement that she believes the video on its own shows multiple crimes committed and the need to impanel is unnecessary.

"Prosecutors are not required to use a grand jury and don't in most cases, so we are forced to question whether this is yet another example of law enforcement being held to a different standard than every other person being investigated for murder," she said.

A grand jury has the power to compel witness testimony and obtain documents that could otherwise be sealed. At the end of its investigation, it has the power to indict. 

Newman also expressed concern about what the grand jury might ultimately determine.

"Prosecutors have considerable influence in whether a grand jury recommends criminal charges. But the grand jury process is cloaked in secrecy, and unfortunately, prosecutors frequently use grand juries as a way to pass the buck, steering the grand jury to decline to bring charges, or to bring only minor charges," she said. "If the grand Jury in Elijah McClain's case doesn't indict the officers and medics responsible for killing him, it will be because the attorney general's office did not want charges to be brought. That would be a grave injustice."

A spokesman for the city of Aurora said officials are fully cooperating with the external investigation into the death, and noted that its separate external investigation into the actions of police, firefighters and paramedics is ongoing. Because of the nature of those proceedings, they could not provide additional comment.

The Denver Gazette has reached out to the Aurora Police Department for comment on the grand jury announcement. 

Colorado Politics and 9News contributed to this report.