Suspect pleads not guilty to attempted murder in violent road rage attack in San Diego CountyA man accused of attacking two people during a road-rage confrontation in Carlsbad pleaded not guilty to attempted murder and assault charges. A man accused of attacking two people during a road-rage confrontation in Carlsbad pleaded not guilty to attempted murder and assault charges. A man accused of attacking two people during a road-rage confrontation in Carlsbad pleaded not guilty to attempted murder and assault charges. A man accused of attacking two people during a road-rage confrontation in Carlsbad pleaded not guilty to attempted murder and assault charges. CARLSBAD, Calif. (KABC) -- A 49-year-old man accused of attacking two people during a road rage confrontation in Carlsbad -- including allegedly stabbing a passenger multiple times -- pleaded not guilty Wednesday to attempted murder and assault charges.