Again, coward and violence are two sides of same coin.

Some people like you just don't realize that. If Wu had the courage to stand up against mistreatment earlier on, or if he had the sense to understand what the company worst but legal treatment could be, and had the courage to face it, did he need to kill?

Are you going to kill if you were fired? Are you going to kill for my benefits? So why do you encourage this type of behavior? Totally nonsense. Understanding doesn't mean we have to sing a praise song.

Also, I suspect Mr Wu may be under the influence of some medical condition, otherwise it is very hard for me to understand a loving father with three lovely kids, with age of 47, could do the stupidest thing.