Zack Snyder | Tolga Akmen/Anadolu Agency/Getty Images Autumn Snyder died by suicide in March 2017 Snyder’s daughter was 20-years-old when she died by suicide on Mar. 12, 2017.

Zack Snyder Steps Down From ‘Justice League’ to Deal With Family Tragedy. ... Snyder’s daughter Autumn Snyder died by suicide in March at age 20. Her death has been kept private, ...