Puzzle Tech Murder

WHO KILLED BENJAMIN? You are an employee of the infamous IT corporation, Puzzle Tech Enterprise. The prestigious 40 storey high office building overlooks the entire CBD. It’s Thursday night and you are still staying late trying to finish the remaining task your reporting manager handed you 5 minutes before 5pm. It has been a long and quiet night since you weren’t aware there were anybody else left in the building. Suddenly, the door behind you opens and a team of men in uniform storm in. Before you realised, you were handcuffed and slammed onto the ground. In a cold and uneasy voice, the man holding you down yelled, “This is the police. You are under arrest for the murder of Benjamin Pierce”. You are confused with the event that has just happened in the last few seconds. It wasn’t me, you thought. Isn’t Benjamin Pierce the head of finance at Puzzle Tech? You are ushered into the room that Mr. Pierce was murdered where there are several more people being detained also. You recognise them as other Puzzle Tech employees. Looks like it's going to be a long night after all.