What was the song on the episode of Cold Case Files..?!

Question:

What was the song on the episode of Cold Case Files..?

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The episode with the heavy-set girls, it plays toward the end when they are taking the guy into custody.

It sounded like Dido, but I'm not for sure..the only line I remember from the song is "I Should have known"..it was real mellow type music..had a piano I believe..

Answers: Here is the list of songs played on the new episode 9/23/07 I don't know if that is the episode you want but here they are.

Nirvana sang:
All Apologies
Come As You Are
Heart Shaped Box
Lithium
Something in the Way

Little Voices sang:
You're My Sunshine

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