8 killed in San Jose mass shooting, suspect also dead

The shooting occurred at the Santa Clara Valley Transportation Authority in San Jose, California, on Wednesday morning. The suspect, a VTA employee, died from an apparent self-inflicted gunshot.
4:13 | 05/27/21

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Transcript for 8 killed in San Jose mass shooting, suspect also dead
the exhaustion across this country, yet another mass shooting. What we're now learning tonight about the shooter this time at a workplace in San Jose, California. The Santa Clara valley transportation authority, the vta as it's called, they keep the buses and trains going. The shooter an employee there authorities say he shot and killed eight people, one person critically injured tonight. Authorities say he shot and killed himself. We learned that investigators believe he set his own home on fire before leaving for work. The first 911 calls coming in at 6:34 this morning pacific time. Multiple law enforcement agencies reporting. The gunfire under way when they arrived shooting across two separate buildings. Stunned workers led away to safety. There was a rescue operation to get victims out. All day today they searched for potential explosives after reports it was a possibility. The bomb squad probing the sprawling plant. And that fire at the gunman's home. Neighbors forced to evacuate as investigators searched there too. Those scenes that have become all too familiar in our country, family members waiting in a nearby sheriff's office for word on their loved ones. And late today president Biden ordering the white house flag to be lowered for the fifth time after a mass shooting just since he became president. Issuing a statement saying, simply, enough. Calling on congress to take immediate action. Late today authorities identifying the gunman and ABC's Kaylee Hartung leads us off from San Jose. Reporter: Tonight, federal and local law enforcement are combing yet another mass shooting crime scene for evidence after a deadly rampage at this rail yard in San Jose. This is where everything unfolded this morning. Multiple people shot and killed, Reporter: The calls for help from the valley transportation authority light rail maintenance yard started coming just after 6:30 A.M. Local time. We have three code 3 ambulances. This is an active shooter. Reporter: Happening just as train service for the morning - commute was getting underway, preparing to increase ridership as the pandemic subsides. And just as 80 employees were reportedly holding a union meeting. Multiple law enforcement agencies swarming the rail yard which is just down the street from the sheriff's office and other county government buildings. Tactical teams racing in to reach victims. Desperate family members rushing to the area searching for any information about loved ones. I'm just here looking for my brother. He's an employee. Okay, have you heard from him? No. Reporter: Michael Hawkins saying he got a message from his wife Rochelle, a mechanic. She said she dropped her phone from running, but was all right. I'm just here for my wife and hoping she's okay and whoever else in there is okay. Reporter: Explosives teams clearing the facility inch by inch. We received information that there are explosive devices that are located inside the building. Reporter: Eight employees killed. One person critically injured. The suspect is 57-year-old Sam Cassidy, taking his own bomb squads moving in on his home, authorities say he set fire to it just before driving to the rail yard. Our thoughts and love goes out to the vta family, the organization and what they've had to go through. Here we are in the united States of America, we're experiencing something that is not experienced anywhere else in the world. There is a sameness to this and that numbness I think is what we're all feeling. What the hell is going on in the United States of America? The hell is wrong with us? And when are we going to come to grips with this? When are we going to put down our arms, literally and figuratively. Those questions from the governor and Kaylee Hartung on the scene for us tonight and, Kaylee, we know this is still an active crime scene tonight. Reporter: David, the bomb squad is still on site here and officials warn this investigation will take considerable time because this rail yard maintenance facility is just so large and we've heard officials praise the quick response of officers here. Let me show you why that was possible. See that building in the distance. That's the sheriff's department about a hundred yards across the street from the rail yard. The police department is a block in front of me. If not for that geography the situation could have been much worse. David. We're thinking about all these families tonight, Kaylee Hartung leading us off, Kaylee, thank you.

This transcript has been automatically generated and may not be 100% accurate.

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