dr. gregory fritz wants to warn parents tonight that suicidal depression is real and can strike any teen anywhere. >> somewhere between 15% and 20% of high school kids say that they have thought about suicide in the past year. >> reporter: but more than 17 years ago, sue klebold says she knew so little about teen depression. >> could you have prevented what happened at columbine? >> if i had recognized that dylan was experiencing some real mental distress, he would not have been there. he would have gotten help. >> reporter: in this video from his junior year he seems self-conscious but talks about the future, going to college. >> so you get better chances at high school as far as college goes, maybe a scholarship. time, a series of troubling events. he hacks into the school computer system with some friends. days. he scratches an epithet on the locker of a kid he thinks is taunting him. then the big shock, he and another kid break into a van, steal electronic equipment, and police make an arrest. >> this is a felony, two felony counts. absolutely. it was awful. and at the time i thought

dr. gregory fritz, president of the american academy of childtry, wants to warn parents tonight that suicidal depression is real and can strike any teen anywhere. 20 percent of high school kids say that they have thought about suicide in the past year.eporter: let me repeat. 15% to 20% of adolescents cide. and that's at least one child in every american classroom. every 95 minutes, a young person will take their life. fritz says a lot of loving parents can miss something serious, sure that changes are just a phase. parent myself. be so, i don't want to see it, t's just a phase." the good news is, oftentimes it is. it can lead us to have blind spots.ternet, thousands of kids make secret confessions. a teenage girl who seems to smile. >> just like this eternal sadness.r: a high school star who says teenagers are better than adults at hiding depression. they're so afraid of the stigma. at my life on the surface, you'd see a kid who was the captain of his basketball team.r roll and consistently at every party. so you would say i wasn't wasn't suicidal, but you would be wrong.this broadcast, we'll

dr. gregory fritz wants to warn parents tonight that suicidall depression is real and can strike any teen anywhere. >> somewhere between 15% and 20% of high school kids say that they have thought about suicide in the past year. >> reporter: but more than 17 knew so little about teen pression. >> could you have prevented what happened at columbine? >> if had recognized that dyla was experiencing s some rea mental distress, he would not have been there. he would have gotten help. >> reporter: in this video from his junior year he seems self-conscious but talks about the future, going to college. >> so you get better chances at high school as far as college goes, maybe a scholarship. >> reporter: around the same time, a series of troubling events. he hacks into the school computer system with some friends. they're all suspended for thrhree days. he scratches an epithet on the locker of a kid he thinks is taunting him. then the big shock, he and another kid break into a van, steal electronic equipment, and police make an arrest. >> this is a felony, two felony counts. >> it was terrible, i kn