Eb7        Dm   Gm   Cm
|---x-----6----5----3----3----------|
|---4-----8----6----3----4----------|
|---6--O--6----7----3----5----------|
|---5--R--8----7----5----5----------|
|---6-----6----5----5----3----------|
|---x-----x----x----3----x----------|


Here are two Gmin pentatonic riffs that are used throughout the song, as indicated below:

Riff 1:       
|-----------|           
|-----------|
|-----------|
|-3-3-3h5~--|
|-----------|
|-----------|

Riff 2:

|----------------------------------|
|----------------------------------|
|----------------------------------|
|-5--3-----------------------------|
|-------5--3-------5--3------------|
|--------------6----------6----3~--|


Chorus progression:

Gm
I shot the sheriff

Cm                         Gm  (Riff 1)
But I didn't shoot the deputy

And repeat...

Verse progression:

Eb7     Dm        Gm
All around in my hometown

Eb7     Dm             Gm
They're trying to track me down

Eb7                 Dm           Gm
They say they want to bring me in guilty

Eb7         Dm        Gm
For the killing of a deputy

Eb7        Dm         Gm    (Riff 2)
For the life of a deputy