FULLERTON – Rumors swirled around Laguna Lake for 40 years that a vicious snapping turtle named "Old Bob" lurked beneath its water lilies. Turns out the talk was not some exaggerated fish tale. On Thursday, dredging company workers snared the 100-pound snapper near a park dam in the north-central part of the city. A Santa Monica contractor, hired to scoop out fish during a $2 million restoration of the 7-acre lake, netted the 50-year-old, 36-inch alligator snapping turtle along with catfish, crappie and bluegills.