On Friday, AP reported that a law enforcement officer in San Francisco provided a statement about the UPS driver who allegedly killed three of his coworkers. According to their findings, they believe the killings may have resulted from the assailant allegedly feeling disrespected. However, it’s uncertain if this was the primary reason why the man committed the crime. The Police Department for the city of San Francisco couldn't provide any other details at this time.

According to AP "Shaun Vu, a senior UPS driver said Lam also struggled with personal issues and was depressed a few years ago. He had shown improvement, but Vu said Lam looked troubled a few weeks ago.

That was around the time Lam filed a grievance claiming he was working excessive overtime."

What we know so far

Yahoo News carried the story that Jimmy Lam began shooting at a group of his coworkers on Wednesday morning at a company warehouse in San Francisco. One of the law enforcement officers overseeing this case claims Lam concentrated on the three drivers, Mike Lefiti, Wayne Chan and Benson Louie. It’s unclear whether the targeted parties contributed to their murderer feeling like his job gave him too little respect.

It was reported that at least one of the dead was shot more than once. A witness said to a union official that after shooting Louie, Lam shot Chan in the back and then walked up and "finished him."

One of the law enforcement officers overseeing this case claims Lam concentrated on the three drivers, Mike Lefiti, Wayne Chan and Benson Louie.

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It’s unclear whether the targeted parties contributed to their murderer feeling like his job gave him too little respect.

No signs of discontent

Vu made clear in his statement that Lam appeared to have a positive relationship with all three men he shot and killed. Leopold Parker, another employee for the United Postal Service, claimed most of the workers at the distribution center got along just fine with one another for the most part.

If someone did have an issue with their co-workers, they either found a resolution in a one on one discussion forum, or they ultimately dismissed the problem altogether as they were often alone in their vehicles and did not have a lot of time to spend together. He also said Lam would protest about the amount of work in a day periodically but never presumed Lam would become volatile over it.

Police said that the violent incident only ended after three people were dead. At that stage, Lam turned his gun on himself and shot himself dead. The rest of the workers were running away from the scene at the packing facility. Police responded quickly and took control of the situation.