07/31/2015 03:18 am ET Updated Aug 14, 2015

Mom Whose Bullied Daughter Committed Suicide Is On A Crusade

Tricia’s 12-year-old daughter, Rebecca, tragically took her own life after being bullied mercilessly on social media. “I immediately went on this crusade to stop bullying to save other kids,” Tricia says.

In the video above, she shares a heartfelt message with three young women who are engaging in vicious online attacks against each other. 

“It breaks my heart. I hear how you guys talk to each other, and it’s awful,” Tricia tells the woman.

Dr. Phil adds, “We all need to think about what we write down when we get behind that keyboard, because there is a human being on the other end.”

This episode of Dr. Phil airs Friday. Watch more here.