How do you explain tragedy to a 3-year-old? Close to five years ago, Jayson Greene and his wife, Stacy, lost their 2-year-old daughter, Greta, to a horrible accident. Fifteen months later, their son, Harrison, was born. Now that Harrison is growing up, he wants to know about his older sister. In the animated video above, Mr. Greene struggles with how to introduce his son to Greta — even though they can never meet.
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