Please answer the following question: What type of details about leonel wilfredo ruiz  can be gathered from the following bio?  Bio: leonel wilfredo ruíz carmona -lrb- born july 27 , 1975 in caracas , venezuela -rrb- is a venezuelan judoka , who competed in the men 's heavyweight category . he picked up a gold medal in the over-100 kg division at the 2004 pan american championships in margarita island , and also represented his nation venezuela at the 2004 summer olympics . ruiz qualified for the venezuelan squad in the men 's heavyweight class -lrb- +100 kg -rrb- at the 2004 summer olympics in athens , by topping the field in his own division and receiving a berth from the pan american championships in margarita island . much to the delight to the home crowd inside ano liossia hall , ruiz fell short in a brilliant , full-minute ippon and a yoko shiho gatame to the host nation greece 's charalampos papaioannou during their opening match .
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