The Santa Clara Valley Transportation Authority began to run trains along selected test routes in preparation for restoring passenger service as early as the end of the week.

The 10-year employee was a paint-and-body worker at the Santa Clara Valley Transportation Authority rail yard, scene of the May 26 attack by a fellow worker who shot and killed nine VTA colleagues before turning a gun on himself.

The resumption of the VTA “bus bridges” could ease a summer of frustration for thousands of mass transit commuters, who had been told in mid-June that light rail might resume this month.

The VTA this week gave no new date for a resumption of service suspended since the May 26 mass killing at the VTA rail yards in San Jose.

Misuse of property, outbursts of temper, warnings from co-workers show no “formal discipline for threatening behavior” by VTA employee who killed nine, then himself, on May 26.

Beginning next Monday, June 14, VTA will operate a new weekday peak hour shuttle between the Diridon Station and Santa Clara Valley Medical Center, designed to meet Caltrain, Altamont Corridor Express and bus services at Diridon Station.

All VTA light rail routes continue to be suspended “until further notice” as mass shooting investigation continues.

Adrian Balleza was known for lighting up any room with a big smile and sharing his signature goofy jokes. He was a family man first and foremost, and his proudest moment was becoming a father,

“Based on recent developments in the investigation we can say that the suspect has been a highly disgruntled VTA employee for many years, which may have contributed to why he targeted VTA employees.” -- Sgt. Russell Davis of the Santa Clara County Sheriff’s Office.

The man identified by California law enforcement officials as the gunman in a mass shooting at a San Jose rail yard on Wednesday lived alone and had a hostile personality, according to interviews with a neighbor and an ex-girlfriend, as well as a review of court records. The gunman, Samuel James Cassidy, 57, lived southeast of downtown San Jose, in a suburban neighborhood of cul-de-sacs and palm trees, public records show. Doug Suh, a real estate agent who lived across the street, described Cassidy, who authorities say appeared to have killed himself, as someone with a short temper.

Many of you have reported the names of the employees who were lost. To us here at VTA they are friends and our family and we want to honor their memory.

Alex Ward Fritch, 49, who had been in critical condition since being taken to Santa Clara Valley Medical Center Wednesday morning, died from his injuries, the County of Santa Clara Medical Examiner/Coroner. said.

Investigators were seeking a motive for the morning attack by a Santa Clara VTA transit supervisor on his co-workers, leaving eight dead and seriously injuring at least one other.

The VTA attack was the worst mass shooting in the Bay Area since 1993. Wednesday's killer set fire to his own house before the deadly assault.

Multiple injuries and multiple fatalities were reported today in an early morning mass shooting by a lone gunman at the Santa Clara Valley Transportation Authority maintenance yard on Younger Ave. in San Jose. The Santa Clara County Sheriff's Office reported at 8:08am via Twitter that “shooter is down” in the incident Wednesday morning.

The shift to yellow tier opens light rail and buses to more travelers, who must still wear masks and stay 3 feet apart beginning May 26.