'Brentwood police said two people have been detained after a shooting at 24-Hour Fitness that left one man dead and three people wounded.  Subscribe to KTVU\'s YouTube channel: https://www.youtube.com/channel/UCVhtkN7-c8mA8GXEoxS4YQw?sub_confirmation=1  KTVU delivers the best in-depth reports, interviews and breaking news coverage in the San Francisco Bay Area and California  Watch KTVU\'s newscasts on https://www.ktvu.com/live  Download KTVU\'s news and weather apps for free at https://www.ktvu.com/mobile-apps  Subscribe to KTVU\'s newsletter at https://www.ktvu.com/newsletters  Follow KTVU on Facebook: https://www.facebook.com/ktvu  Follow KTVU on Twitter: https://twitter.com/KTVU  Follow KTVU on Instagram: https://www.instagram.com/ktvu2/' 

Tags: gym , News , video , shooting , police , Top news , crime , Bay Area , bay area news , Brentwood , fatal , 24-hour fitness , KTVU , seen-on-tv , homicide

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