Wesley Corman is a 100% creep. Not only does he murder Adam Evans, but he throws the suspicions on his sickly wife. What an a-hole. He also ran a big time gambling debts that his father-in-law had to pay. And yet halfway through the episode where is he? At the race track again betting on the horses. His practice, as it may be, was definitely suffering because he was barely ever in the office. The word jerk is too nice for this guy.

This was one of the worst criminals of the whole series in my opinion.

can you explain me what the title of this episode mean?
Uneasy lies the head that wears a crown is a line from Shakespeare often translated as Heavy Lies the Crown. Thus Uneasy Lies the crown is a play on words on this, crown being the tooth, and "uneasy" being the alibi.

What could have been writen on this report that would indicate that the victim was making love with Lydia??
Without getting too graphic, could be there were certain fluids, both male and female, on his body, ahem [Columbo red-faced].

what is this all about with this blue stains on his kandkerchief and shirt?
Sometimes when laundry detergent doesn't properly dissolve, it can cause these stains