Protesters have also been met with tear gas and rubber bullets by some police departments, though there have been examples of police joining demonstrators.

Floyd's brother, Terrence Floyd, spoke to those gathered in support of his brother Monday, delivering a simple message for those committing violence.

"He would not want y'all to be doing this," he said.

On the day Terrence Floyd appealed to protesters for peace, President Donald Trump took an aggressive tact with demonstrators.

Charlie Baker, a Republican and frequent critic of the president said that while he should have been surprised at the hardline message from the White House, he wasn't.

"At so many times during these past several weeks when the country needed compassion and leadership the most, it was simply nowhere to be found," he said.

2 autopsies find Floyd died by homicide, but differ on key details

While government leaders debate how to approach protests sparked by Floyd's death, two different autopsies are at odds over the details of his death.

Both the Hennepin County Medical Examiner's report and an independent autopsy commissioned by Floyd's family concluded his death was a homicide.

Three held him to the ground, with one officer, Derek Chauvin, seen with his knee on Floyd's neck as he said that he couldn't breathe.

The independent autopsy said that Floyd died of "asphyxiation from sustained pressure" which cut off blood flow to his brain.

The county release said it found "no physical findings" of asphyxiation, but that the death was a result of "cardiopulmonary arrest complicating law enforcement subdual, restraint, and neck compression." The county said heart disease and drugs were among "significant conditions" to the death but did not describe the level of drugs in Floyd's system.

Michael Baden, one of the independent medical examiners, said "there is no other health issue that could cause or contribute to the death."

'We plan to hold everyone accountable'

Chauvin has already been arrested in Floyd's death, and Minnesota Attorney General Keith Ellison told CNN's Chris Cuomo Monday that more action may soon follow.

All four Minneapolis officers on the scene of Floyd's death have been fired, but only Chauvin has had charges brought against him.

But amid calls for all the officers who saw the incident but did not intervene to face justice, Ellison said he is looking into actions against them.

Chauvin is charged with third-degree murder and second-degree manslaughter and was initially expected in court Monday, but his appearance has been rescheduled for June 8, the day before Floyd's funeral.