This song is in Drop "D" Tuning.

                  1.=First Ending//2.=Second Ending
e----------------------1.-----------2.------|
B----------------------/------------/-------|
G-6-6-6---------5-5-5--/------------/-6-6---|
D-6-6-6---6-6---5-5-5--/--3---1-----/-6-6---|
A-4-4-4---6-6---3-3-3--/--3---1-----/-4-4---|
E---------6-6----------/--3---1-----/-------|

Hope this Helps