The Witness Files

I would like to find out the name of the song and the performer that was the last song of the movie. It was played during the subtitles at the end of the movie. Who sang the song and what is the name of the song? That's it. I really liked the move and it held my interest the entire time. The actors were very convincing and attractive. The only thing I couldn't figure out was that it seems that the detective/investigator that was dating the the ex-con lady, Sandy, towards the end of the movie would have taken the time and interest to view a photo of the missing "dead" lady Sandy by looking in her prison files. There would have been a photo of her and an investigator would have wanted to see a photo of the person that is supposedly dead and missing.