Many of the kids, who weren't with teachers or other adults at the time, didn't know that it was real until they heard gunshots in the hallway. While many of the students believed that it was a practice run, the teachers revealed that they were also just as surprised to hear that it was taking place and had everyone take cover. However, things quickly turned serious when they heard over the loud speaker that the school was under lockdown. The day of the shooting was up being pretty normal for the students at Liberty High. *Major spoilers for season 4 of 13 Reasons Why below!* How did the shooting start? Here's everything you need to know about the shooter in season four of 13 Reasons Why. So who was the shooter? And what was their motive? In the end, the big reveal was one of the show's biggest twists yet.
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With various clues lying around about who could be behind it and what their motive might be, the group tried their best to figure it out before it was too late.
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So it was interesting to see them have a whole episode dedicated to a school shooting happening at Liberty High. 13 Reasons Why has always tackled current events even if they were a little hard to watch. While the kids are normally on the run from the law or solving a brand new mystery, one of the biggest issues at hand was school safety this season. 13 Reasons Why has had a number of big moments over the years, but season four had some of its most nerve-wracking and heart-pounding episodes of the entire series.