Hi Smowball...I am a little confused. You appear to have questioned your son as to whether he is playing a prank and yet he remains in bed whilst you try another lead on the laptop.
If you have tried another lead, I hope it had the correct transformer attached because, in my opinion, you could do further damage if the voltage is too high.
Anyway you may find the following thread useful if the screen has been shattered and has to be replaced. :-
http://www.theanswerbank.co.uk/Technology/Question989176.html
Ron.