Mikhail Gorbachev, who set out to revitalize the Soviet Union but ended up unleashing forces that led to the collapse of communism, the breakup of the state and the end of the Cold War, died Tuesday. The last Soviet leader was 91. 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/