The suspect in the San Jose mass shooting that left 8 people and the shooter dead on Wednesday previously fantasized about killing his colleagues, his ex-wife told The Associated Press.
While they hadn't been in touch for about 13 years before Wednesday's shooting, she said that Cassidy spoke angrily about colleagues and spoke about killing people at work when they were married.
"I never believed him, and it never happened. Until now," she told AP.
Nelms told Bay Area News Group that Cassidy would rant about his job and "resented what he saw as unfair work assignments."
"He just thought that some people got more easy-going things at work, and he'd get the harder jobs," she told Bay Area News Group.
Authorities say Cassidy died by suicide at the scene of Wednesday's shooting, which happened at a Valley Transportation Authority light rail yard in San Jose, California.
A motive for the shooting remains unknown.
The victims of Wednesday's shooting have been identified by the Santa Clara County Office of the Medical Examiner-Coroner as Paul Delacruz Megia, 42; Taptejdeep Singh, 36; Adrian Balleza, 29; Jose Dejesus Hernandez III, 35; Timothy Michael Romo, 49; Michael Joseph Rudometkin, 40; Abdolvahab Alaghmandan, 63; Lars Kepler Lane, 63; and Alex Ward Fritch, 49.