MADISON, Wisconsin.- The Madison police officer who shot and killed Corey Ruiz on a busy street should face criminal charges, civil rights attorney Ben Crump said Friday, after angry protests erupted over videos showing the fight.

“Not only did they take him down, not only did they Taser him, not only did they kick him, but you saw that they shot him three times in the head and other parts of the body,” Crump said.

He spoke at an emotional news conference held at the state Capitol, less than 2 miles (3.2 kilometers) from where Ruiz was killed.

“He was my love. He loved his daughter, he loved his family. He didn’t deserve to be taken away like that. They took my baby away from me,” said his mother, Elsa Ruiz, bursting into tears. He said he never imagined he would be burying his son, who was 38 years old.

Police say Ruiz pulled out a knife during a fight with four officers, wounding one of them. That officer then fired shots, according to police. The officer has not yet been identified.

The four officers have been placed on administrative leave pending a state investigation. A separate investigation by the city’s independent police watchdog is also underway.

Ruiz died just a couple of blocks from her 13-year-old daughter’s home, and she will have to pass by that spot every time she goes to school, said her mother, Marjorie Ann Aliomar.

Kah’liyah Ruiz cried as she described learning from her father’s death.

“My heart was broken and hurt a lot knowing that I can no longer see my father,” he said.

“People say he’s a criminal. So what? He had a family, he had me,” his daughter said, bursting into tears.

The family vowed to seek justice for Ruiz’s death and was accompanied by Crump, who called the shooting an unjustified “execution.”

“Any time there is excessive use of force, there must be accountability,” Crump said. He said it was “shocking on every level.”

The shooting was captured on cellphone video that was shared widely online, although Madison Police Chief John Patterson cautioned Thursday that the video did not show the altercation from the police officers’ perspective.

But unlike almost every other city of similar size, Madison does not require its police to wear body cameras, so there is no footage from the officers’ perspective.

“Thank God there was video,” Crump said. “If there was no video, imagine what the narrative would have been.”