Complex sentence: In 1866, a grizzly weighing was killed in Valley Center, California, the biggest bear ever found in California, as described in 1932 by a witness who was six years old at the time.
Split into simpler sentences: In 1866, a grizzly weighing was killed in Valley Center, California. This was the largest bear ever found in California, as described in 1932 by a witness who was six years old at the time.