It's a message Jerry and Samantha Bowles wish the person who shook Serenity could have heard.

"You want to see your kids graduate from high school and go to college and be successful and because of what happened to her, those things will never happen for Serenity," said Jerry Bowles.

"Don't ever shake a baby," said Samantha Bowles.  "Put the baby in the crib and walk away.  It's not going to hurt a baby to cry.  Call somebody to come and help you, just please, please don't ever shake a baby."

To learn more about the Period of PURPLE Crying, click here.

To find out more about the Children's Trust Fund, click here.

To visit the National Center for Shaken Baby Syndrome website, click here.