The man accused of killing a Jacksonville teenager over an argument about loud music has been indicted on a first-degree murder charge.

 

 

 

Michael Dunn has been previously charged with second-degree murder.

 

 

 

But Thursday, a grand jury upped the charge.

 

 

 

Dunn was also indicted on three counts of attempted murder.

 

 

 

Police say last month he got into an argument with four teens in a car after asking them to turn their music down.

 

 

 

Dunn is accused of shooting into the car several times, killing one of them, 17-year-old Jordan Davis.

 

 

 

He says he felt threatened by group.

 

 

 

His arraignment on the new charges is scheduled for Monday.