David Schaecter, who turned his survival of Auschwitz into a lifelong mission to teach future generations about the horrors of the Holocaust, died last Thursday at 96 . His funeral was held Sunday.

At just 11 years old, Schaecter was crammed into a cattle car with his family and taken to Auschwitz.

"From the minute they unloaded the train to the minute they starting killing the people from that train, it took less than 2 hours," he told CBS News Miami in 2012. His mother and sisters were killed on the first day, and his brother later died in the camp.

Through that pain, Schaecter made it his life's work to educate children about the Holocaust. He returned multiple times to Auschwitz , including in 2012 with fellow survivors David Mermelstein and Joe Sachs, and guided South Florida

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