Hello fellas so that you won't have to suffer like me I have made a walkthrough for 12 hours by Westeford:
Keypad puzzles answers(In order)
1037 for the first one,3843 for mean median range puzzle,1468 for chemistry puzzle
Word puzzle answers(in order)
The five words are each room high scoring words
Room 201-Noahs Ark,Room 202-A group of pill pushers,room 207-hit the switch,room 208-scania metropolitan,room 209-mutant turtles
The words that you need for the trial room are 'the metropolitan mutant of ark'
Then the murder trials will happen and I'll leave that upto you! If you have any questions leave them in the comments below