(1) Because of Adam's transgression, a curse of death has passed on to all subsequent generations of mankind and creation to this day.
(2) Death will claim all mankind born of the generation of that first man.
(3) The Bible appears to be silent on the method of death, nor does it appear to set any limitations regarding the time of one's death. If true, then all methods of death, whether of nature, war, old age, natural causes, disease, accident, execution by man or even execution by God Himself, appear to be unrestricted. If that is also true, then God cannot be condemned for taking life, but rather is justified in requiring it by any means He chooses. Thus, the how, when and where of terminating a life appears to be at His prerogative.
(4) God is not a thief. The world and all it contains belongs to Him. Everything is His claim, to give to whomsoever He will. There appear to be no exclusions nor limitations to His property rights. Whatever man possesses has been entrusted to him by God, whether it be land, wealth, wisdom, knowledge, power, authority, husband, wife, concubine, children, etc.