Complex sentence: Negan randomly chooses one member of the group and beats the person to death, leaving the fates of Glenn, Daryl, Michonne, Maggie, Rosita, Aaron, Sasha, Abraham, and Eugene unknown.
Split into simpler sentences: Negan randomly chooses one member of the group and beats the person to death. Leaving the fates of Glenn, Daryl, Michonne, Maggie, Rosita, Aaron, Sasha, Abraham, and Eugene unknown.