A police vehicle is seen near the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)

Police escort people to a reunification center for VTA employees and families near the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)

Investigators work at the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)

Police keep guard near the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)

Police keep guard near the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)

Police keep guard near the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)

Police and investigators work at the scene of a mass shooting in San Jose, California, the United States, on May 26, 2021. Nine people including the suspect were dead and at least one person was injured Wednesday morning after a shooting at a Valley Transportation Authority (VTA) yard north of downtown San Jose in the U.S. state of California, according to the local authorities. (Photo by Dong Xudong/Xinhua)