"It's horrific, it's absolutely horrific," said Lori Glickman of Northridge, Calif., whose teenaged son, Elon Glickman, 17, lost his best friend, Adir Vered, to a stunting accident.
Glickman did not know her own son participated in such stunts until after Vered died, and now has advice for other parents.
"I don't care how good you think your kids are," she said. "They're gonna lie -- that's what kids do. It's important for parents not to stick their head in the sand. Don't try and be the cool parents. It could cost you your kids' life."
Vered died while "car surfing." He was hanging out a back window of a car when the boy driving accidently hit a parked car. Vered was thrown from the car and died instantly.
Elon Glickman started giving speeches about safe driving at local high schools after Vered's death and revealed his past participation in similar stunts.
In his speeches, Glickman talks about wearing a seatbelt, sticking to driving regulations and, most importantly, thinking in the mode of "what if."
"Afterwards, I didn't really know what to do with what happened; but I was just thinking and, all of a sudden, I thought I should give some safe driving speeches," he said. "It really helped me make some sense out of this horrible tragedy. I give them because, hopefully, I can save some kids and save their friends.
"Don't do it," he said. "I lost one of the most important people in my life. No amount of money, fame, popularity is worth it. ... At least for five seconds, put themselves in that place. Really try to imagine it and see that it's just not worth it."