yeah i reading about double spending and really i dont know how its working 
do u know i really dont need the money but i dont need him take it really cuz he is lair and thief and dont thinking about people he scamed
I can create a double spending transaction for you, but you would have to sign it. However, because blockchain.info no longer supports exporting private keys and does not allow signing of raw transactions, this process will be extremely difficult as it requires using the wallet seed in another wallet and hoping that it derives the same addresses as blockchain.info. do u know i really dont need the money but i dont need him take it really cuz he is lair and thief and dont thinking about people he scamed thank you brother for ur help, tell me what i should do and i will do it now