Boulder's Sigma Pi fraternity expelled over allegations it served alcohol to recruits – Boulder Daily Camera
CU BOULDER KAPPA SIGMA - BEACHAPALOOZA 2017 - YouTube
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Start acting like men, not boys”: More Boulder fraternities fined for parties flouting COVID-19 health rules
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Boulder's Sigma Pi fraternity shut down amid possible drugging allegations
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Kappa Sigma Fraternity - RECORD BROKEN! Congratulations to the Brothers of Gamma-Tau at the University of Colorado - Boulder on their record-breaking fall pledge class with 68 men! #AEKDB #ChampionQuest #RunItBack | Facebook
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CU BOULDER KAPPA SIGMA - BEACHAPALOOZA 2017 - YouTube