Sam Cassidy, 57, shot dead nine co-workers on Wednesday in San Jose
Cassidy filled his home with an arsenal including 25,000 rounds of ammunition
He also had home-made bombs inside, and lit a fire to try and blow up his home
The house failed to explode but did catch fire; the bombs were deactivated
Cassidy killed himself when police closed in on him at the end of his rampage
A picture is emerging of a deeply disturbed man with a long hatred of his job
An employee who gunned down nine people at a California rail yard and then killed himself as law enforcement rushed in had talked about killing people at work.
Authorities released the names of the nine people who were killed when a gunman opened fire at a San Jose Valley Transportation Authority rail yard Wednesday.
As new details emerge a day after the San Jose shooting that ultimately claimed the lives of nine victims, Santa Clara County Sheriff Laurie Smith described Thursday morning how deputies and police officers arrived at the light rail facility within moments of the first 911 calls coming through.