Rear Suspension Shock Absorber problems of the 2006 Toyota RAV4

Performing a three-point turn on an uneven, rocky surface. Heard a loud clang/pop from the rear of the car. Thought a rock was kicked up or it might have been suspension related. Was informed by dealer at previous oil change that I was in need of replacing passenger rear shock absorber as it was leaking badly. I had figured that the failed shock absorber had finally given in and had created the noise. I went ahead and scheduled an appointment for service that same week and had an oil change done and had both rear shock absorbers replaced. Peeked underneath the car when I got home to see new the new shiny (not oily) shocks and noticed that the bolt connecting the anti sway or stabilizer bar to the lower suspension arm had sheared off on the driver's side. The bottom half of the bolt, the bushing, washer and nut were missing. The passenger side was complete and intact. The failure of this critical piece of suspension had obviously created the noise I heard.