India, Dec. 8 -- A week after four people died and many were injured in a deadly shooting in Stockton, California, investigators are still looking for a suspect and a motive. The San Joaquin County District Attorney's office has confirmed that a 22-year-old man named Luciano Guerrero, who attended the birthday party where the shooting took place, was later arrested for a "parole violation related to his presence" at the scene in Stockton. However, he is not a suspect in the shooting at this time, according to ABC 7.

Another man who was at the scene, Billy Williams, was also arrested for being on parole and being found at the scene of a crime, according to KCRA. He, too, was not arrested in connection to the shooting.

The November 29 sho...