Michael Brown Sr. (C), the father of 18-year-old Michael Brown who was shot dead by a police officer, distributes turkey for Thanksgiving to neighbors where his son was killed in Ferguson, Missouri, on November 22, 2014. Tensions rose Saturday in the troubled St Louis suburb of Ferguson, with a grand jury poised to decide whether to prosecute a white police officer for killing an unarmed black teenager. US President Barack Obama has called for calm, Missouri's governor declared a state of emergency and activated the state National Guard, and the FBI has deployed an extra 100 personnel in the city.Police helicopters trained search lights over Ferguson late Friday as a small gaggle of protesters braved the cold to demand that officer Darren Wilson stand trial for shooting 18-year-old Michael Brown on August 9. AFP PHOTO/Jewel Samad        (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
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