The chip in Henry’s neck wasn’t for tracking; it was a power dampener.
For years, the "Hawkins Lab Massacre" was framed as a tragedy caused by Eleven’s lack of control. This episode flips the script, revealing that Eleven wasn’t the killer—she was the survivor. The true perpetrator was , the lab’s first subject who had been hiding in plain sight as a friendly orderly. Key Revelations [S4E7] Chapter Seven: The Massacre At Hawkins Lab
out of self-defense, not curiosity.
While attempting to escape the Upside Down, Nancy is hijacked by Vecna. The chip in Henry’s neck wasn’t for tracking;
As Henry is pushed into the "hellscape" dimension, he is struck by lightning and mutated, officially becoming Vecna . Convergence of Timelines The true perpetrator was , the lab’s first
Eleven doesn't just defeat Henry; she rips a hole in reality.
While the lab massacre unfolds in memories, the present-day Hawkins crew discovers the "Water Gate" at the bottom of Lovers Lake.