A 30-year-old Voorhees man has been arrested and charged with second-degree vehicular homicide in connection with a fatal crash that killed a 29-year-old Clementon woman on April 3. The victim, identified as Karina Castillo, was a beloved state social worker and new mother who was struck and killed by the suspect, identified as Stephen Sirch, while driving her Honda Civic on the Black Horse Pike in Hamilton Township. Castillo was pronounced dead at the scene. Sirch is currently being held at Atlantic County jail, pending a detention hearing.