The new season is expected to hit Netflix in 2024.
Smyth would become a key witness in the brothers trial.
They were tried separately, and both juries deadlocked, resulting in a mistrial.
Lyle & Erik MenendezTed Soqui/Sygma via Getty Images
They were later tried together and found guilty.
A judge later ruled that cameras would not be allowed in the court room for the second trial.
In November, Netflix ordered two additional installments of theMonsterfranchise following the success ofDahmer.
The focus of the third season has not been revealed.
