He severed the flexicable that is right next to the battery. Talk to his manager and demand it be repaired by a real certified tech instead if some kid at the mall kiosk. If that gets you no where call the techs at Atlanta Cell Tech at 404-831-0399 and ask them about scheduling a repair.

There are several external touch screen monitors that will plug into your Mac available at www.newegg.com

Take it to a tech. This will require some professional service.