EE heard a noise in the truck shop so he unlocked it & went inside to check it out & a man came full force at him. Employee pushed him away & then the man punched him in the nose. EE hit him 2 or 3 times in the face with his fist & the man landed on the floor. EE put his knee on his back & heard footsteps behind him then was hit in the head. He was unconscious for about 40 minutes