someone please help!

I heard a song on the radio (90.1 fm) yesterday, and I really liked it.. but I didn't hear the name of the song, and the music store by me didn't have much in the way of irish folk music..

from what I heard, there was a line that willy was a tailor.. and he ended up being shot by sarah (or some woman) because of another woman (or was it Sarah!?) it was a nice slow song.. really liked it.. wanted to know where I can buy it.

any help would be appreciated (sorry I don't have more detail)