'Euphoria' just killed a main character for the first time. Here's what the showrunner said about the 'horrific' scene.

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Jack Topalian as Naz and Sydney Sweeney as Cassie in
Jack Topalian as Naz and Sydney Sweeney as Cassie in "Euphoria" season three.

Patrick Wymore/HBO

'Euphoria' and its stars have grown up. That's a bad thing.

Tech Insider : Business
Sydney Sweeney in
Sydney Sweeney in "Euphoria" season three.

Courtesy of HBO

Everything to remember about the first two seasons of 'Euphoria' to prepare for season 3

Tech Insider : Business
Zendaya as Rue in
Zendaya as Rue in "Euphoria" season three.

Patrick Wymore/HBO

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