In a Wednesday afternoon news conference, Duval County's state attorney, Angela B. Corey, said she will pursue a life sentence against Dunn, without the possibility of parole.
"We don't believe he ever needs to be out of prison," she told reporters.
"If you are defending your life, you don't then run from the scene," Corey said.
The shooting, which took place just six months after the killing of teenager Trayvon Martin by George Zimmerman in Sanford, Fla., drew national attention because Dunn is white and the teens are black.
Ron Davis, the victim's father, told reporters he was proud to see a jury made up largely of white men return a verdict against Dunn.
"I wanted Jacksonville to be a shining example that you can have a jury made up of mostly white people, white men, and be an example to the rest of the world to stop the discriminatory practices," Davis said.
Lucia McBath, the victim's mother, invoked Martin's and was visibly shaken as she addressed reporters in the courtroom where Dunn was convicted only minutes earlier.
"We know that Jordan has received his justice," she said. "We know that Jordan's life and legacy will live on for others."