Paul Ciancia, accused LAX shooter, pleads not guilty Last Updated Dec 26, 2013 2:42 PM EST RANCHO CUCAMONGA, Calif. - Paul Ciancia, the man charged with fatally shooting a TSA screener and wounding three other people at Los Angeles International Airport last month, pleaded not guilty Thursday. 22 Photos Shooting at LAX Gunman opens fire at Los Angeles International Airport's Terminal 3 Ciancia entered his plea during a brief appearance before a federal magistrate at a Southern California detention center. The 23-year-old was indicted on first-degree murder and 10 other counts in the Nov. 1 shooting that killed Transportation Security Administration Officer Gerardo Hernandez.