Apostates

Q: The killing of apostates
Most Muslims and non-Muslims think this is an anomaly. They are wrong. This practice is not only in the collective memory of the population in Muslim countries, but all shariah handbooks tell the same story. Everyone who has studied Islam seriously knows that Shariah prescribes the death penalty for apostates. This is based on the authentic traditions of Muhammad who said:"If somebody (a Muslim) discards his religion, kill him." (Bukhari, Book 52, Number 260)and"The blood of a Muslim who confesses that none has the right to be worshipped but Allah and that I am His Apostle, cannot be shed except in three cases: In Qisas for murder, a married person who commits illegal sexual intercourse and the one who reverts from Islam (apostate) and leaves the Muslims." (Bukhari, Book 83 Number 17)In most Islamic countries the death penalty for apostasy is not applied because this is an inhumane law. In these countries however apostates are harassed administratively by all possible means or are punished in one way or another. In the so-called moderate Muslim country Malaysia they have sent a woman to a psychiatric institution and her child has been taken away from her because she had turned away from Islam and became a Hindu. Fortunately she lives in "moderate" Malaysia. If she were living in Saudi-Arabia, she would be beheaded.

A: Capital punishment to the murderer: right
Adultery: Quran only prescribes flogging with a 100 stripes(24:2); and that the adulterer/adulteress cannot marry anybody except another adulteress/adulterer(24:3). How can they be capable of marrying after being killed?
Apostate: There is no compulsion in religion(2:256 )Those who believe, then reject faith, then believe (again) and (again) reject faith, and go on increasing in unbelief,- Allah will not forgive them nor guide them nor guide them on the way.(4:137) How can one believe, reject, and then believe again if one has already been killed?