Transcript for Edison Employee Kills Two in SoCal Rampage
The swat team police and firefighters cleared the scene. As detectives stayed behind to search for a motive just after -- a Southern California Edison employee he opened fire on his coworkers. Before killing himself. And could be a semi automatic handgun. Numerous shell casings -- in the location. Investigators say the shooter killed two male coworkers one was pronounced dead at the hospital. The other was found on the first floor of building three in close proximity to the suspect's body. Two other workers a woman and a man were critically injured some Edison employee he's heard the gunshots Ron or -- tried to calm his daughter over the phone. I distanced owner of just you don't do -- -- do survive and and has to be -- Other employees were locked inside a conference room until police arrived Monica Salazar got a text from her mother insists said that. -- the shooter in a building. And now. -- of the game season. I'm -- and I -- she lands some workers were evacuated from the building following orders to hold their hands up. By late afternoon Salazar was reunited with her mother Martha Coronado house relieved fewer deal was finally over. We were just told -- To lock ourselves in a room and that was it but I thought we gave him I'm just glad we're out. Anger -- are safe. Detectives don't know at this time -- the gunman was having trouble on the job or his personal life. -- says the employee he did not give any indication he intended to carry out an act of workplace violence he swiped his badge to gain access to the building. Just like the other 235. People who worked in building three. -- calls it one of the worst days in the company's 125. Year history. The really. Feels like a family and operates like a -- these issues. Heard terrible and any circumstance that they're really deeply felt by our employees. So it's very difficult. This is Melissa McBride for ABC news.
This transcript has been automatically generated and may not be 100% accurate.