Item description:

Walk forward and go the last cubicle on the right to find Dennis's corpse

Keep looking left and right with RS until you see the "Lighter" person
(Your Mind Buddy) spawn in, then press the random button on him
** You need to press (RANDOM BUTTON - /\, O, X or []) on the light version
of the person (Your Mind Buddy), when available (spawns are random)
!! Need To Do This 3 Times !! **

!! IMPORTANT - Timed: Do These Actions Fast !!
** NOTE: These Are Timed, So Pause Game For Each Step IF Needed
Also, make sure the "Focus X" shows first for them **

Click on Dennis (At the desk)
Examine the exit wound (his back)
Examine the bullet hole (in the wood - look up)
Examine the gun holdster (on desk - look left)
Focus on the gun that killed Dennis (glass man is holding it)
Examine Dennis' corpse