San Jose mass shooter faced disciplinary hearing on the day of the massacre 'for making racist remarks to coworkers' as new footage shows him walking across rail lines just minutes into massacre that killed nine Samuel Cassidy was due at a disciplinary hearing over racist comments on the day of the mass shooting on San Jose Wednesday Surveillance video showed Cassidy, 57, walking from one shooting site to another at the Valley Transportation Authority minutes into the massacre Cassidy was held by U.S. Customs officers returning from the Philippines in 2016, according to report A memo says Cassidy possessed 'books about terrorism and fear and manifestos… as well as a black memo book filled with lots of notes about how he hates the Valley Transportation Authority' where he worked