This image provided by the California Department of Motor Vehicles shows Alfredo Pimienta, who police determined drowned his two daughters and wife before committing suicide May 24, 2011 in San Diego.... more 
This image provided by the California Department of Motor Vehicles shows Alfredo Pimienta, who police determined drowned his two daughters and wife before committing suicide May 24, 2011 in San Diego. Police and mental health experts say there is no logical explanation for what prompts a father or mother to resort to such desperate and ugly acts. (AP Photos/Calif. DMV) less 
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Associated Press
Sun, Jul 3, 2011 7:51 PM EDT