Regarding: It seems to me he better embrace Islam and terrorism or Muslims will murder him
Once again nonsense!
Example Ayatollah Ali Sistani for one would disagree with you.
Reply: Please check thesae references:
Al-Bukhari
“The most-respected collection of the sayings and behavior of Muhammad is the canonical ahadith (hadith, singular; ahadith, plural) of Al-Bukhari. Muslim legal scholars use these traditions to establish the punishment for apostasy from Islam. The apostate is not to be burned to death, as 'Ali had done, but they were to be executed nevertheless.
“260. Narrated 'Ikrima: 'Ali burnt some people and this news reached ibn 'Abbas, who said, "Had I been in his place I would not have burnt them, as the Prophet said, 'Don't punish (anybody) with Allah's Punishment.' No doubt, I would have killed them, for the Prophet said, 'If somebody (a muslim) discards his religion, kill him.'" — Volume 4, Book 52, Chapter 149, Number 260. p. 160-161.
Volume 9, Book 84, Number 58: Narrated Abu Burda:
“The Prophet then sent Mu'adh bin Jabal after him and when Mu'adh reached him, he spread out a cushion for him and requested him to get down (and sit on the cushion). Behold: There was a fettered man beside Abu Muisa. Mu'adh asked, "Who is this (man)?" Abu Muisa said, "He was a Jew and became a Muslim and then reverted back to Judaism." Then Abu Muisa requested Mu'adh to sit down but Mu'adh said, "I will not sit down till he has been killed. This is the judgment of Allah and His Apostle (for such cases) and repeated it thrice. Then Abu Musa ordered that the man be killed, and he was killed. Abu Musa added, "Then we discussed the night prayers and one of us said, 'I pray and sleep, and I hope that Allah will reward me for my sleep as well as for my prayers.'"
Translation of Sahih Bukhari, Volume 9, Book 84, Number 64: Narrated 'Ali:
“Whenever I tell you a narration from Allah's Apostle, by Allah, I would rather fall down from the sky than ascribe a false statement to him, but if I tell you something between me and you (not a Hadith) then it was indeed a trick (i.e., I may say things just to cheat my enemy). No doubt I heard Allah's Apostle saying, "During the last days there will appear some young foolish people who will say the best words but their faith will not go beyond their throats (i.e. they will have no faith) and will go out from (leave) their religion as an arrow goes out of the game. So, where-ever you find them, kill them, for who-ever kills them shall have reward on the Day of Resurrection."”
Volume 9, Book 84, Number 57: Narrated 'Ikrima:
“Some Zanadiqa (atheists) were brought to 'Ali and he burnt them. The news of this event, reached Ibn 'Abbas who said, "If I had been in his place, I would not have burnt them, as Allah's Apostle forbade it, saying, 'Do not punish anybody with Allah's punishment (fire).' I would have killed them according to the statement of Allah's Apostle, 'Whoever changed his Islamic religion, then kill him.'"”
http://www.2muslims.com/Quran_and_Hadith/hadith/bukhari/084.sbt.html