2x22 - Murder, She Wrote

After Julia Marcus Granger is found murdered during what seems to have been an apparent art theft, suspicion turns to her husband Donald, who, as a result, also ends up being suspected in a recent rash of art thefts where there were no fatalities. Julia's sister Sabrina is convinced that Donald didn't do it and begs Jessica for help. While looking into Julia's murder, Jessica realises that she has two completely different criminals on her hands, and someone tampered with the scene of Julia's murder to make it look like something else.