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Tearjerker: Dawn of the Dead (2004)
Nicole having a final moment with her dad before he dies and reanimates as a zombie and is shot by Kenneth.
Kenneth having no choice but to put down Andy after he turns into a zombie.
"I'm sorry, my brother..."
The end of the DVD feature "We Interrupt This Program," with the reporter completely shell-shocked after spending all day covering the zombie outbreak, and tearfully telling his wife he's coming home. Even worse, he's played by Richard Biggs in his final role before his untimely death.