Popsugar Entertainment 13 Reasons Why Who Wrote the Notes in 13 Reasons Why Season 2 Trailer? Who's Behind the Threatening Notes in 13 Reasons Why's Season 2 Trailer? Let's Investigate May 9, 2018 by Quinn Keaney View On One Page Photo 7 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Watch the trailer for yourself to see if you can spot any other lingering season two clues. Previous Next Start Slideshow 13 Reasons WhyTV