These are tabs to the acoustic version of "Assassin" John Mayer performed in 
a seminar at Berklee College of Music. I've added the lyrics from the album version for reference.

http://www.youtube.com/watch?v=bp9w7q04hvs



    
e---x--------x
b---x--------x
g---7--------x
d---7--------7
a---10-------5
E---7--------3

    
--------x-----
--------x-----
--------7-----
--------11----
--------9-----
--------7-----

  
---x--------x-
---x--------x-
---6--------4-
---9--------7-
---7------- 5-
---5--------3-

          
-------x------
-------3------
-------3------
-------2------
-------3------
-------x------

       
--x--------x
--2--------x
--3--------4
--2--------5
--3--------5
--x--------3


VERSE:

              
I work in the 

 
dead of night
       
          
When the roads


 are quiet

      
No one is arou

nd

        (
To track my mo

)
ves



            
Racing the yel


low lights

            
To find the ga


te is open

              
Shes waiting i


n the room

           
i just step on


 through.



PRE-CHORUS:

         
        O whoa

             
 whoa whoa who

       
a...  O whoa w

) 
hoa whoa whoa

        
        You ge

      
t in, You get 

       
done, and then

         
 you get gone

              
        You ne

      
ver leave a tr

       
ace or show yo

              
ur face you ge

 
t gone

              
        You sh

        
ould have turn

          
ed around and 

         
left before th

  
e sun came up 

again

              
        But th

      
e sun came up 

again



CHORUS:

     
I was a killer

       
, was the best

          
 they'd ever s


een

     
I'd steel your

       
 heart before 

          
you ever heard


 a thing  

     
I'm an assassi

       
n and I had a 

     
job to do

     
Little did I k

       
now that girl 

          
was an assassi

              
n too...