Here is the solution for solving Infocom's mystery game, Deadline. All commands which should be typed in exactly as you see them are in quotes.
Directional movements are in brackets.
In Deadline, you need to establish the motive and method for the murder beyond all reasonable doubt before you can arrest the guilty party. If you don't have an air-tight case, the jury will acquit the defendant. It is here in the library where we go about establishing the method by which poor Mr. Robner was done in. You will find some mud spots which is your first clue. Let's have a look below and check for some indication that the murderer was indeed below the balcony.