Two newly released graphic videos have surfaced, capturing the moment a Ferguson, Missouri, police officer was violently knocked over by a suspect during a protest commemorating Michael Brown’s death on Friday. The incident has left the officer in critical condition.

The protest occurred just ten days before the Democratic National Convention and led to the arrest of Keith Rose, a St. Louis alternate delegate to the DNC and a member of the City of St. Louis’ Civilian Oversight Board, which reviews police misconduct allegations, according to Fox 2. Rose has since stepped down as an alternate DNC delegate.

“Keith Rose has decided to voluntarily withdraw as an uncommitted alternate delegate to the DNC,” the Missouri Democratic Party announced in a statement.

The newly released videos, recorded from two different angles, depict Ferguson Police Officer Travis Brown being struck by 28-year-old suspect Elijah Gantt on a sidewalk outside a police station after protesters attempted to pull down a perimeter fence. Officer Brown is “fighting for his life” after suffering critical injuries during the assault that took place amid protests marking the 10th anniversary of Michael Brown’s death.

The videos, sourced from CCTV footage and another officer’s bodycam, were shown at a news conference on Tuesday. They reveal that the suspect had a running start before tackling Officer Brown, causing his head to violently hit the pavement. Brown was left unconscious and lying on his back, with the suspect on top of him, as other officers quickly arrived and subdued the suspect.

Officer Brown, who is a father to twin young daughters, sustained a severe brain injury from the fall.

“I think it’s a clear indication that my officer was violently charged and hit by this individual,” Police Chief Troy Doyle stated on Tuesday. “If you look at the video, the officer is standing up, ready to apprehend this guy. Then this guy tackles my officer like a football player.”

The footage shocked many of the 150 attendees at the news conference, including at least three dozen police officers and several mayors from the St. Louis area.

Elijah Gantt, from East St. Louis, Illinois, was already facing assault charges and is now facing additional charges for allegedly kicking another officer in the head, according to St. Louis County Prosecutor Wesley Bell. Gantt is being held on a $500,000 cash-only bond.

Chief Doyle stated that while the protest remained peaceful for most of Friday night, with police allowing demonstrators to block streets outside the station, tensions escalated when protesters began shaking and eventually breaking the fence outside the station. At that point, Doyle deployed an arrest team, which included Officer Brown, who is Black.

Keith Rose, the DNC delegate, is accused of partially kicking in the metal gate outside the Ferguson Police Department during the protest and now faces charges of first-degree property damage. Rose has been released on a $500 bond. His attorney has dismissed the charges as unfounded, claiming that Rose was not involved in damaging the fence.

Officer Brown, who joined the department in January after previously serving with the St. Louis County Police Department, is part of a new wave of Black officers recruited since 2014. Back then, the department had just three Black officers, but today, more than half of the force, including Brown, is Black.

“He wanted to be part of the change,” Chief Doyle said during a weekend press briefing. “He wanted to make a difference in our community. He’s the kind of officer we need here. And what happens? He gets assaulted. I had to look his mother in the eye and tell her what happened to her son. I never want to go through that again.”

On Wednesday, Officer Brown’s family released a statement expressing gratitude to first responders and thanking the public for their support. They also asked for continued prayers.

“We are holding onto hope and trusting in the power of faith to see him through this difficult time,” the statement read.

“Travis is more than a police officer; he is a devoted father, son, brother, uncle, godfather, and friend. A man of strong faith, his heart is as big as his smile, and his positive energy is truly contagious. TJ is also an athlete, an adventurer, a lover of movies, and so much more. We know he is determined to continue living life to the fullest once he has recovered.”

The violence against Officer Brown has sparked outrage from Chief Doyle and many Ferguson residents. In a community of about 18,000, where roughly two-thirds of the population is Black, many questioned the anger behind the protests given the changes that have taken place in Ferguson over the past decade.

“Let’s recognize the good that has taken place in our police department. Let’s recognize the reform,” Doyle urged on Tuesday.

In 2014, the Ferguson Police Department had around 50 White officers and only three Black officers. Today, 22 of the 41 officers are Black, including Officer Brown. The department has implemented training in crisis intervention and bias avoidance, and Chief Doyle even redesigned the officers’ uniforms after residents expressed concerns that the old uniforms were “triggering.”

Two other officers were also injured during the protest, with one sustaining an ankle injury and another an abrasion. Both were treated at the scene.

Michael Brown’s death in 2014 led to widespread protests that galvanized the Black Lives Matter movement in Ferguson, Missouri, and across the nation.

In 2015, the Justice Department declined to charge Darren Wilson, the officer who shot Michael Brown, but issued a highly critical report highlighting racial bias within the Ferguson police department and the county courts.