JACKSONVILLE, Fla. -

The Michael Dunn case has renewed the debate over Florida's "stand your ground" law after a mistrial was declared over the weekend on Dunn's first-degree murder charge.

Dunn shot and killed 17-year-old Jordan Davis at a Jacksonville gas station parking lot on Nov. 23, 2012.

Dunn was charged with first-degree murder in Jordan Davis' death.  Dunn claimed he saw Davis with a shotgun and the teenager threatened to kill him, so he fired in self-defense. Last weekend, a Duval County jury deadlocked on the murder charge but convicted Dunn on four other felony counts that could send him to prison.

Davis' parents say they will now fight to get the "stand your ground" law rewritten.

"The world needs to know that Jordan Davis did nothing wrong," said Ron Davis, Jordan's father. "This man is guilty of killing our son, of murdering our son. And the law, the way it is now, creates hung juries and that's what we have here."

Dunn was found guilty of three counts of attempted murder for shooting into an SUV carrying four teens after an argument over loud music. He will be sentenced next month.