The Letter - S8-E20
Continuity mistake: When Carter and Abby are kind of fighting outside, when Carter is carrying Abby back to the car,from the front shot he threw her over his left shoulder, but a second later, from the rear view when he drops her she is on his right shoulder.
Continuity mistake: Abby's neighbours' are named Joyce and Brian, but in one scene Joyce calls him Brett.
Continuity mistake: The Doctor treating the woman in a corset getting a breathing treatment removes her stethoscope from around her neck twice as the other doctor walks away.
Continuity mistake: Inside the first 10 minutes, Greene finishes a trauma and his shift and heads upstairs to take Ella from Corday, so she can start her shift. Next, we go back down to the ER, where Benton and Finch are assessing a trauma victim. In the background you see Greene checking an X-ray film, but he has meant to already leave with his baby.
Continuity mistake: Chuny tells Abby that Weaver is looking for her because she didn't call Child Services for a patient. Abby then goes to a phone to call. While she's on the call she hands Malik some sporting event tickets. The next scene shows Weaver out on a date when she bumps into Malik and Susan on their way to the sporting event. The very next scene is back in the ER where Abby is telling Carter that Lewis (Susan) just discharged a patient. The scenes don't line up, as they give the impression that Weaver, Malik and Lewis are all on shift at the hospital, when they're out on the town at the same time.
Continuity mistake: When Kerry leaves Romano's office the door is already closing in the close up, but when she is walking out the door is still, then closes.
Continuity mistake: When Abby places the red stickers on Mr. Stegman's chest, after Carter is shocked they are in different places.
Continuity mistake: While talking to Kerry in the medicine cupboard Deb's stethoscope changes position numerous times.
The Letter - S8-E20
Continuity mistake: When Dr Greene opens his locker for the last time, the locker is hinged on the left. However when Kerry and Carter clean out Dr Greene's locker after his death, the locker is hinged on the right.
Answer: A man named Paul Sobriki comes into the ER in the season 6 episode 13 " All in the Family." He is complaining of headaches, Carter and Lucy decide to rule out meningitis and do a lumber puncture. Paul struggles during the procedure and believes that both doctors are stabbing him. Lucy, who is interested in Psych thinks something is wrong with their patient mentally, but Carter is dismissive of her. She gets cross with his attitude and she calls the psych department anyway to have a look at him. Later on and near the closing 20 minutes or so of the episode, all the staff start playing loud music and get a cake which appears to be blue lol, together to party as it's Valentines Day, Carter returns from somewhere and asks where Lucy is. He goes to check one of the rooms for her and Paul Sobriki comes up behind him in the dark and stabs him twice in the lower back, he collapses and as he falls unconscious he sees Lucy on the ground also. In the next episode, Be Still My Heart (ep 14), Dr Weaver discovers them and all of the staff work to try and save them, whilst Carter survives. Lucy's wounds are fatal and suffers a pulmonary embolism as Corday and Romano try to save her. Carter is grief stricken and feels guilty about the way he treated her, he becomes addicted to painkillers and Benton, Greene all help him and book him into rehab.