About a block away from the shooting, Ferrell's car was wrecked so severely that "he was lucky to have survived," Chestnut said. Police told local media that Ferrell had to crawl out the back window of the vehicle.
Describing the incident allegedly caught by the dashboard camera, Chestnut said Ferrell was on the sidewalk when police arrived. Ferrell walked toward them, he said.
"Even if they suspected that he was robbing the house from the 911 call, most robbers run the other way when law enforcement comes," the attorney said.
Two lasers hit Ferrell's chest before the 24-year-old raised his hands, "like, wait," Chestnut said, further describing the tape. It wasn't clear if the laser were sights from the stun gun or a firearm.
Without any verbal warning from police, four shots were fired, then there was a pause before six more gunshots, and another pause before the final two rounds, the attorney said. Ten of those 12 bullets hit Ferrell, killing him instantly, Chestnut said.
"That's not a scared officer. That's someone intending to kill," he said, saying he believes a jury will agree, as it's "unprecedented" for police to arrest one of their own so swiftly after a shooting.
Family members have said Ferrell was a happy, outgoing guy, who loved Winnie the Pooh as a child.
The former gymnast, football player and FAMU chemistry major was working two jobs at the time of the shooting, his mother, Georgia, has said.
His fiancee, Cache Heidel, told CNN on Wednesday that Ferrell had been out with friends from one of those jobs, at Best Buy, the night he was shot.
Heidel described Ferrell as someone who was always joking and finding ways to make people smile. His demeanor was so gentle and caring, she said, that she nicknamed him "Sweets."
"He's always a joy to be around. He cared so much for other people, more so than himself," she said.
She said she hopes Kerrick is convicted and that her fiance's death will spur dialogue across the nation.
"That is a hope I have, that his death will resound for a country that prides itself on being diverse and inclusive and accepting everyone for who they are," she said.
Chestnut, who said the family would file a civil suit, also expressed hope that the release of the police video would yield a teachable moment.
"There are other police departments, there are other officers, there are other people who can learn from this video, especially in the day of 'stand your ground,'" the lawyer said.