The Hawkins massacre serves as the bloody cornerstone of Stranger Things Season 4, finally unmasking the series’ ultimate villain and connecting the dots between Eleven’s past and the Upside Down’s origin. The Truth Behind the Bloodshed
While attempting to escape the Upside Down, Nancy is hijacked by Vecna. [S4E7] Chapter Seven: The Massacre At Hawkins Lab
This chapter effectively ends the mystery of Eleven's origins. It establishes that: The Hawkins massacre serves as the bloody cornerstone
While the lab massacre unfolds in memories, the present-day Hawkins crew discovers the "Water Gate" at the bottom of Lovers Lake. [S4E7] Chapter Seven: The Massacre At Hawkins Lab
Vecna uses Nancy to reveal his backstory, showing her the Creel House and confirming he has been the puppet master since 1979. Why It Matters