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A brave civilian with a concealed weapons permit tried to stop him but was gunned down by David Hernandez Arroyo Sr , the scumbag who happened to be wearing body armor at the time and who also took out his ex - wife over a child support dispute .
 A brave civilian with a concealed weapons permit, him, David Hernandez Arroyo Sr, the scumbag who happened to be wearing body armor at the time and who also took out his ex - wife over a child support dispute, who, who, his, his ex - wife, child, concealed weapons
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 A brave civilian with a concealed weapons permit, him, David Hernandez Arroyo Sr, the scumbag who happened to be wearing body armor at the time and who also took out his ex - wife over a child support dispute, who, who, his, his ex - wife, child, concealed weapons