How do withdraw money from a deceased person?

[efflandt]

You cannot simply take money out of a dead person's account. Anything with a beneficiary (life insurance, retirement accounts) should be paid to beneficiaries if you give them a certified copy of death certificate. But for anything else, it either has to be properly and legally handled by the personal representative designated by the deceased, or it has to go through probate, and all debts and taxes paid before anything can be distributed from the estate. Consult an estate attorney. If he has no will and no POD (payable on death) or TOD (transfer on death) for other accounts or assets, web search "intestate succession" for your state to see who gets what.