Report that friendly fire killed sergeant adds another layer of tragedy to Thousand Oaks shooting

Minutes after a gunman fired shots in Borderline Bar and Grill, Sgt. Ron Helus arrived outside the Thousand Oaks restaurant, ready to rush in.

Patrons smashed windows to escape, injured and bloody. They raced through a parking lot as they fled the bar, where 28-year-old Ian Long had just killed…