Who did the 'counseling'?
I don't know who specifically signed the counseling sheet. I'm not completely familiar with Army regs (different branch of service), but I would guess that it was handled by his immediate superior or unit commander, perhaps both. If Army regs are similar to Navy regs in this regard (and I'd wager that they are), they'll require the person receiving the counseling to sign the form as well. Refusal to sign would be an additional charge, and since it's not on the charge sheet publicly available, I presume he signed it.