MILWAUKEE (AP) — The Rev. Al Sharpton is scheduled deliver a eulogy for a Black man who died last month after being pinned to the ground by hotel security guards in Milwaukee, his office said Tuesday.

The death of Dvontaye Mitchell has drawn comparisons to the murder of George Floyd, a Black man killed in 2020 after a white police officer in Minneapolis knelt on his neck and back.

Sharpton, a longtime activist and leader who serves on the U.S. Commission on Civil Rights, said in a news release that he’ll speak at Mitchell’s funeral Thursday. The Republican National Convention opens just days later, on July 15, and law enforcement agencies are bracing for political protests around the convention arena in Wisconsin’s biggest city.

Sharpton said convention-goers need to know about Mitchell’s death.

“We cannot watch Dvontaye Mitchell’s murder be washed out by the RNC coming to town, where they will solidify a nominee whose view of justice is pure brute force,” Sharpton said, referring to former President Donald Trump.

Mitchell, 43, died on June 30 at the Hyatt Regency after four security guards held him down on his stomach, media outlets have reported. Police have said Mitchell entered the hotel, caused a disturbance and fought with the guards as they were escorting him out.

RELATED COVERAGE Nikki Haley releases her delegates so they can back Donald Trump at the RNC next week Federal judge rules protesters can’t march through Republican National Convention security zone GOP Convention security will allow guns within outer perimeter, sets parade route for demonstrators

Mitchell’s family has hired civil rights attorney Ben Crump, who represented Floyd’s family. His death spurred worldwide protests against racial violence and police brutality.

It’s unclear why Mitchell was at the hotel or what happened before the guards pinned him down. The Milwaukee County medical examiner’s initial report said Mitchell was homeless, but his family told the Milwaukee Journal Sentinel that’s not correct. Sharpton said in a news release announcing his Milwaukee visit that Mitchell was suffering a mental health crisis but didn’t elaborate.

Police officials were still investigating Mitchell’s death on Tuesday, the Journal Sentinel reported. An email sent by The Associated Press to the police department’s general media inbox seeking an update on the investigation went unanswered.

The medical examiner’s office has said the preliminary cause of death was homicide but the cause remains under investigation. No one had been charged criminally as of Tuesday.

A spokesperson for Aimbridge Hospitality, which runs the Hyatt Regency in Milwaukee, told the Washington Post that the company extends its condolences to Mitchell’s family and supports the ongoing investigation.