Murder in the Afternoon - S2-E3
Continuity mistake: When Jessica is in the Lt.'s car, he scolds her, signalling with his index finger, which swaps to an extended hand an instant cut later, which is suddenly lowered yet an instant cut later. The way he holds the car keys also changes.
Murder in the Afternoon - S2-E3
Continuity mistake: The doctor steps in and calms down the actor while placing his hand on his shoulder. A shot later, his arm is lowered.
Continuity mistake: When Emma was almost hit by a car she jumped up onto the edge of the wall and then back down onto the floor. When she landed she was facing the theatre door, but when Oliver came of the door and the shot changed, she was facing away from the wall. This happened in the transition from stunt person to Angela.
Keep the Home Fries Burning - S2-E14
Continuity mistake: When Andy and Kelso fight, Andy's right hand is either next to Kelso's armpit or his collarbone. (00:20:12)
Keep the Home Fries Burning - S2-E14
Continuity mistake: The sheriff shows the doctor the menu and cries, "His picture is all over the place!" Then he lays the menu down. A shot later, he is holding the menu with both hands.
Keep the Home Fries Burning - S2-E14
Continuity mistake: When the sheriff sits down at the restaurant table, Jessica's hands swap from lying on the table to raised.
One Good Bid Deserves a Murder - S2-E17
Continuity mistake: The first time Jessica is shown asking for her room number, she asks for room 812. Later in the episode she asks for room 810.
Continuity mistake: While Cissy and Jessica discuss inside the tennis club, a man with a blue shirt walks behind Jessica. From the opposite angle, he's metres behind, entering the place again, though he now exits through the left.
Continuity mistake: At Elliot's office, Carol discusses with Cissy, whose arms swap between crossed or not depending on the shot.
Answer: In a flashback scene, it was shown that he had a violent temper, so it stands to reason that he finally killed her in a fit of rage.