Looking for a Story I Found Online a While Back About an Office Employee Addicted to Speed Who Chronicles….?

his life there. He starts out talking about why he has his speed addiction, and then it moves on to talk about two goodie-goodie employees in his department who bring nerf guns to the office, and it turns into a rivalry with another department, then into a full scale war between the two. guns become involved, a fire starts out, and he goes to search for the girl he liked (whom he talks about in the story often). and finds her dying. in the end he finishes up his story by saying he can hear one of the workers with a gun walking towards him.

Its written as if its a journal of sorts, documenting each day as it comes along. ive been looking for it forever. maybe someone else has read it and can perhaps find it/ give me clues (more key phrases for google). any help would be much appreciated. thanks a lot
please if anyone has any information i will be so grateful!!!