I know who you are

i know who you are i know what you did i know where you been and i know what you hid i watched where you went i watched where you put it i watched you slip away and then i watched her go limp
[chorus:]
but i don't know why was i really there yeah i don't know why anymore i knew where she worked i knew where she walked i knew the way home i knew that she was stalked i wanted to try to help i wanted to meet the cops i wanted to be on t.v. but something made me stop
[chorus]
was i really there what did i see i knew, i had to help but i couldn't help but i couldn't help but i couldn't help it
[chorus]