I knew one seventeen year old boy on anti-depressants who killed himself. He seemed fine and then a few weeks later he was dead.
But I thought I'd add a little perspective from knowing someone who tried and, thankfully, failed to kill himself. My son. He was just a boy, not even a teenager. Fortunately his attempt included jumping from a high place and just hoping it was high enough to get the job done. If we hadn't learned about it from friends and teachers, then he would have progressed until he got it right.
I never saw any signs. I knew he didn't have many friends, he's a loner and his best friends had each moved away, but I never saw any signs of depression. I didn't even know a child could seriously want something like this!
I think that if he would have succeeded, I would have never seen the signs. But after he failed and we knew about it, then he seemed to stop pretending, I suppose. He stopped smiling. Stopped laughing. Stopped playing or even fighting with his brother. All the life and joy was gone from his face, and that terrified me. By the time I got him to a therapist, the depression had passed, but she said that it had been a deep depression. Once in that state, he couldn't see a way out - he told us that he didn't think he did anything good to help other people, and he was just sad all the time, and if he was dead, it would all stop.
I know he's a child, but I think the feeling that there is no way out is how many suicides begin. Depression keeps them from seeing or feeling any hope for a new day.
My son is always going to be a sensitive kid, and I'm always going to be afraid of this happening again. But we talk more, so he doesn't close everything up inside, and any normal sadness doesn't have a chance to bloom into depression without us knowing. Right now, he is once again, a laughing, carefree and smart-alecky kid :)
Tammy