New docuseries examines the unsolved mystery of 'The Tetris Murders'

When Palo Alto CSI investigator Sandra Brown arrived at the scene where 'Tetris' developer Vladimir Pokhilko, his wife, and young son had died, she knew something wasn't quite right with what appeared to be a murder-suicide. She takes a look back on the case nearly 25 years later on the new docuseries for Discovery Plus.