John Costilla, 50

John Costilla, a 50-year-old Latino, died Monday, March 12, four days after he was shot in the 23000 block of Mulholland Highway in Calabasas, according to the Los Angeles County Sheriff's Department.

Costilla was shot March 8 about 7 a.m., said sheriff's homicide Sgt. Sandy Nava, who is handling the case.

After the shooting, authorities were called, and the victim was taken to Northridge Hospital Medical Center, where he remained until his death March 12.

Coroner's records show Costilla died from a gunshot wound to the neck.

Nava said officials arrested Costilla's friend in connection with his death.

Randy Williams, a 57-year-old white man, was originally apprehended March 8 on assault charges, but authorities expect to add the additional charge of murder, Nava said.

Williams is being held at the Twin Towers Correctional Facility in downtown L.A. His next court appearance is scheduled for March 22 at the Van Nuys Municipal Court.

Anyone with additional information about the killing is asked to contact Sgt. Nava or Don Walls at (323) 890-5500. Those wishing to remain anonymous can call Crime Stoppers at (800) 222-8477.

-- Los Angeles Times