kevin hines is one of those four. on september 5, 2000 kevin walked on to the bridge, mentally ill, hearing mysterious voices and in the grip of an unshakable depression he had a compulsion to end his life, he was 18 years old. >> when i got here i was crying my eyes out and i just kept telling myself, you must die, you must die. a voice in my head kept saying the exact same thing. i turned around, looked at the traffic. turned back to the bay and hurdled over the bay. >> twinkle, twinkle little star. >> reporter: hines life has been lucky in some ways and unlucky to others. he was adopted by well to do san francisco couple, that loved children so much that he adopted three. the adopted children got all the love and material comfort a child could want. kevin was sickly, a victim of allergies and terrible asthma. despite that, he made the high school football team. his teammates never knew that he was suffering from bipolar illness. he would have manic periods followed by hearing voices. doctors tried to find the right