Terence Crutcher, 40, was shot and killed by a member of the Tulsa Police Department on Friday night.
Police were responding to reports of an abandoned vehicle, when they came across Crutcher, whose car was stalled in the middle of the road.
They said Crutcher was slow to respond to commands.
A video shows his arms in the air when he was shot with a stun gun and then shot with a firearm.
The Police Department says Crutcher was not carrying a gun and no weapons were found in the vehicle.
The officer who opened fire has been put on paid leave.
Meanwhile, a local resident says he knew Crutcher from their days in high school.
Timothy Henderson of La Crosse knew Terence Crutcher from Tulsa Central High School back in the mid-1990s.
He says he remembers Crutcher as an easygoing kid.
"Funny. Always playing a joke. Loved hamburgers from across the street at Ted's. We did that all the time,” Henderson said.
When he heard the news about Crutcher's death last week, he was shocked.
“Until it happens to someone you know, it doesn't really directly affect you,” Henderson said.
Henderson's father, Jack, is a member of the Tulsa City Council. He’s is echoing his father's sentiments about keeping the city of Tulsa peaceful throughout the investigation.
"The family has asked that everybody remain prayerful. And nobody do anything, but to remain prayerful and patient,” Henderson said. “Now, at the same time, I'm not going to lie to you, they want justice for their fallen. They want this officer brought on charges for murdering my friend."
Henderson says regardless of your opinion on recent officer-involved shootings around the country, it will take everyone in order to improve race relations in the country.
"It takes everybody to do the right thing, regardless of your race, whether you (are) Asian, black, white or whatever. We have to come together. It's the only way it's going to get fixed,” Henderson said.
Henderson says he plans to attend Crutcher's funeral in Tulsa later this week.