'One person died and three were injured by gunfire after a fight broke out in the parking lot of a gym in the East Bay early Thursday morning, multiple media outlets reported. The shooting occurred just before 2 a.m. at a 24 Hour Fitness on Lone Tree Way in Brentwood, NBC reported. The argument started between at least two people at the gym\'s basketball court and moved outside onto the parking lot, KTVU reported.  One man died and three people with gunshot wounds took themselves to local hospitals, KTVU said. The Brentwood Police Department said on Facebook just before 6 a.m. that officers were currently working an active investigation at the 24 Hour Fitness on Lone Tree Way.   #Brentwood #SanFranciscoBayArea #shooting' 

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