Not to belabor the point that some field events are dangerous, but just picked up the LA Times paper and it lists these other accidents:
2005 June 22 - Carson USATF Championships - Official Paul Suzuki killed by shot
2005 Apr. 2 - Cal State Northridge - USC Noah Bryant has hammer ricochet off of fence back into his face requiring several metal plates to repair damage
2005 Eugene - NCAA West - female official struck by discus
2000 Europe - 4 people killed by hammer during summer season
1980s Bakersfield - Cal State LA meet - Sportswriter killed by hammer at Cal State LA
1977 Sacramento - Official Maree Rodebugh killed by shot