Other mistake: In the opening scene, the UnSub is wearing breathing apparatus, however his smoke hood is under his face mask. Wearing the hood under the mask would make it impossible to get a face seal, and as such would let smoke into the mask.
Other mistake: Evergreen State University in Olympia Washington should be The Evergreen State College (they aren't a university). The transcript for Evergreen (assuming they meant the real college) is also wrong in every way: -They said the guy Ivan was expelled, but the transcript lists a B.A. awarded in June of 1968? - Evergreen has always used a narrative evaluation so there are no grades. There shouldn't be numbers or averages. -There are no majors - you get a B.A. or a B.S. -They don't have classic course names like "Philosophy 101" or "History." -The school was founded in 1967 - he couldn't have taken those classes that are listed from 1964 - 1967. (00:18:50)
Other mistake: There is a mugshot of a 35 year old suspect on Garcia's computer. According to what she is saying, the suspect's mother died 10 years ago. A photo shows her with the suspect and he looks exactly the same age as he does now. (00:40:00)
Answer: "The Boogeyman", s02e06. Spoiler alert: The kid is Jeffrey Charles and at that point he had already killed 3 other kids. Jefferey basically hated and resented other kids after his mother abandoned him and his father spent a lot of time with other children because of her job. Jeffery would lure kids Into the Woods and then beat them to death with his bat just because of hate, no particular "reason." The scene you're describing, Jefferey agrees to walk Tracy home when her "buddy" leaves her (at this point the FBI announced there's a serial killer on the loose and kids should walk with a buddy). Jeffrey gets mad at Tracy for walking too slow and for complaining, and he takes a swing at her, causing her to flee Into the Woods and have Jeffery chase her.
Bishop73