Shark attack, 1957-07-24 (Provoked)
Location: La Jolla, San Diego County, California, USA
Activity: Spearfishing on Scuba
Victim: Earl .A. Murray (M, age )
Injury: Diver jabbed shark with spear and it make a threat display. No injury PROVOKED INCIDENT
Fatal: N
Species: Said to involve a 1 m  white shark, but thought  that it was more likely a blue shark
Source: SAF Case #1497; R. Collier, p. xxv; H.D. Baldridge, p.185