times. reporter: you re not sick of it? i m sick as a dog over it, i swore i would never do it again a long time ago. it s funny. reporter: leif bears the scar ofs of years friending to be the golden boit whole world wanted him to be. some said fame is like a drug. sure. you think this is forever, i m god. reporter: but it didn t last forever. he soon fell hard into drugs and alcohol. i was a monster. i m sorry that actions i ve done have hurt people. reporter: just shy of his 18th birthday, high on alcohol and quaaludes he crashed his car and paralyzed a friend. does it still feel like a lifetime ago or does it still haunt you? i have never spoken about this before. i have hard core issues and sleep issues. reporter: leif reportedly settled that case for several million dollars but says it became a catalyst for addiction to heroin, charged twice for