I'll try to post these every other week day (Mon-Wed-Fri), but I make no guarantees. Sometimes there will be more than one cap for a beginning or ending of an episode. I'm also using my capper's discretion - meaning I'm choosing the most aesthetically pleasing image that we see first or last not always literally the first or last things we see. I'll explain this as we go along.
:: Click on images for the HQ versions ::
4.13 Beginning: This episode opens with with kids at a high school calling one girl a slut and then that girl calls another girl ugly and fat. Murder follows. We first see Sam in his white hospital orderly outfit interviewing the murder suspect and he soon joins Dean outside waiting in the car (with a very pretty rain spattered window).
4.13 Ending: By episode's end the boys stop the ghost and Sam returns to the high school one last time to visit with his old teacher, Mr. Wyatt, who pointedly asks him if he's happy. Sam has no answer.