JACKSONVILLE, Fla. -

The man charged with DUI manslaughter in the crash that killed a 12-year-old in April pleaded not guilty Monday at his arraignment.

Investigators said Stanley Jefson, 52, was more than three times over the legal limit, and going 120 mph in a 30 mph zone at the time of the crash that killed Savannah Pheiffer in Arlington.

He's facing a total of 24 charges.

Jefson, who's being held without bond, will be back in court Aug. 12.

Police said Jefson's car crashed into the rear of the truck Pheiffer was in, and the truck hit another vehicle in front of it.

Police said Jefson had a blood alcohol level of .279, three times the legal limit, and also had Xanax in his system. Investigators said he blamed others for not getting out of his way.

Eight others besides Pheiffer and Jefson were injured in the crash.

Pheiffer died a week after the crash from blunt force trauma to the head.

Jefson had three previous arrests on DUI charges.