Shark attack, 1977-08-14 (Unprovoked)
Location: McClure Beach, near Tomales Point, Marin County, California, USA
Time: 11h45
Activity: Free diving for abalone (surfacing)
Victim: Glenn Friedman (M, age 20)
Injury: Leg lacerated
Fatal: N
Species: White shark, 5.5 m to 6 m [18' to 20']  
Source: D. Miller & R. Collier, R. Collier, pp.73-74; J. McCosker & R.N. Lea