CLUE: The Big Bang Theory

Someone has meddled with one of his sacred belongings and he isn't taking it lightly. He's sequestered 6 of his so-called "friends" and created a white board to analyze who did it, what heinous deed was done, and where the act of vengeance took place.
Did Penny dog-ear the comic-book in the laundry room? Or did Howard dismantle the Shelbot in the stairwell?
Only YOU can help Sheldon determine who the culprit is or bear witness to a life made miserable by a scorned man!