The last moments of Michael Brown's life were filled with shock, fear and terror, says a witness who stood just feet away as a police officer shot and killed the unarmed teen.
"I saw the barrel of the gun pointed at my friend," said Dorian Johnson, 22. "Then I saw the fire come out of the barrel."
About 20 minutes before the shooting, Johnson said he saw Brown walking down the street and decided to catch up with him. The two walked and talked. That's when Johnson says they saw the police car rolling up to them.
The officer demanded that the two "get the f -- k on the sidewalk," Johnson says. "His exact words were get the f -- k on the sidewalk."
After telling the officer that they were almost at their destination, Johnson's house, the two continued walking. But as they did, Johnson says the officer slammed his brakes and threw his truck in reverse, nearly hitting them.
Now, in line with the officer's driver's side door, they could see the officer's face. They heard him say something to the effect of, "what'd you say?" At the same time, Johnson says the officer attempted to thrust his door open but the door slammed into Brown and bounced closed. Johnson says the officer, with his left hand, grabbed Brown by the neck.
"I could see the muscles in his forearm," Johnson said. "Mike was trying to get away from being choked."
"They're not wrestling so much as his arm went from his throat to now clenched on his shirt," Johnson explained of the scene between Brown and the officer. "It's like tug of war. He's trying to pull him in. He's pulling away, that's when I heard, I'm gonna shoot you.'"
At that moment, Johnson says he fixed his gaze on the officer to see if he was pulling a stun gun or a real gun. That's when he saw the muzzle of the officer's gun.
"I seen the barrel of the gun pointed at my friend," he said. "He had it pointed at him and said I'll shoot,' one more time."
A second later Johnson said he heard the first shot go off.
"I seen the fire come out of the barrell," he said. "I could see so vividly what was going on because I was so close."
Johnson says he was within arm's reach of both Brown and the officer. He looked over at Brown and saw blood pooling through his shirt on the right side of the body. www.msnbc.com