UCSB freshman David Attias pleaded not guilty Tuesday morning to four counts of murder, four counts of vehicular manslaughter, five counts of felony driving under the influence with injuries and two counts of assault.

The 18-year-old Attias was arraigned at the Santa Barbara Superior Courthouse for the Feb. 23 traffic accident, which occurred on Sabado Tarde Road in Isla Vista and left four people dead and one seriously injured. The defendant is accused of driving a 1991 Saab at approximately 50 mph after running a stop sign at the intersection of Sabado Tarde and Camino Pescadero and hitting Nicholas Bourdakis, Christopher Divis, Elie Israel, Albert Levy and Ruth Levy, according to California Highway Patrol Public Information Officer Mike Muell. Albert Levy is listed in serious condition at Santa Barbara Cottage Hospital.

Defense attorney Robert Sanger entered the plea for Attias, who will be held without bail until his preliminary hearing on March 26.

“For the first amended felony complaint we enter a plea of not guilty and deny the allegations,” Sanger said.

A blood sample obtained from Attias the night of the accident is to be tested for a number of chemicals, but results will not be available until the end of the month, according to Santa Barbara Sheriff’s Dept. Lt. Mike Burridge.

“The toxicity report will come back to the CHP station because they filed the report. It could take as long as two weeks depending on the lab used,” he said.

Attias’ preliminary hearing will be held at 8:30 a.m. on March 26 in department nine at Santa Barbara Superior Courthouse.