Here is long history of systematic killings of Iranians by Islam:
Some of the terrorists, mass murderers, assassins and killers of Shia Islam:
1. Hassan-i Sabbāh: Leader of Assasioun group (Assassin group) [1050s-1124]
http://en.wikipedia.org/wiki/Hassan-i_Sabbah
2. Sheikh Fazlollah Noori (a traitor and a murderer)
http://en.wikipedia.org/wiki/Sheikh_Fazlollah_Noori
3. Navvab Safavi
http://en.wikipedia.org/wiki/Navvab_Safavi
4. Fadā’iyān-e Islam:
http://en.wikipedia.org/wiki/Fadayan-e_Islam
5. Sadegh Khalkhali
http://en.wikipedia.org/wiki/Sadegh_Khalkhali
6. Ruhollah Musavi Khomeini
http://en.wikipedia.org/wiki/Ruhollah_Khomeini
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Victims of Islam and Islamism:
1. Islamic conquest of Iran:
http://en.wikipedia.org/wiki/Islam_in_Iran#Islamic_conquest_of_Iran
2. The Battle of al-Qādisiyyah:
http://en.wikipedia.org/wiki/Battle_of_al-Q%C4%81disiyyah
3. Rostam Farrokhzād
http://en.wikipedia.org/wiki/Rostam_Farrokhzad
4. Abu-Lu’lu’ah Al-Nahawndi:
http://en.wikipedia.org/wiki/Abu-Lu’lu’ah
5. Mansur al-Hallaj
http://en.wikipedia.org/wiki/Mansur_Al-Hallaj
6. Abu Muslim Khorasani
http://en.wikipedia.org/wiki/Abu_Muslim
7. Bābak Khorram-Din
http://en.wikipedia.org/wiki/Babak_Khorramdin
8. “Shahāb ad-Dīn” Yahya ibn Habash as-Suhrawardī
http://en.wikipedia.org/wiki/Shahab_al-Din_Suhrawardi
9. Siyyid `Alí Muḥammad Shírází (Bab)
http://en.wikipedia.org/wiki/B%C3%A1b
10. Bahá’u’lláh:
http://en.wikipedia.org/wiki/Bah%C3%A1%27u%27ll%C3%A1h
11. Táhirih Qurratu’l-Ayn:
http://en.wikipedia.org/wiki/T%C3%A1hirih
12. Amir Kabir:
http://en.wikipedia.org/wiki/Amir_Kabir
13. Ahmad Kasravi
http://en.wikipedia.org/wiki/Ahmad_Kasravi
14. Sepahbod Haj Ali Razmara
http://en.wikipedia.org/wiki/Haj_Ali_Razmara
15. Abdolhosein Hazhir
http://en.wikipedia.org/wiki/Abdolhossein_Hazhir
16. Hasan-ali Mansur
http://en.wikipedia.org/wiki/Hassan-Ali_Mansur
17. Cinema Rex fire:
http://en.wikipedia.org/wiki/Cinema_Rex_fire
18. Dr. Farokhroo Pārsā
http://en.wikipedia.org/wiki/Farrokhroo_Parsa
19. Amir-Abbas Hoveyda
http://en.wikipedia.org/wiki/Amir-Abbas_Hoveida
20. Sepahbod (General) Nader Jahanbani:
http://en.wikipedia.org/wiki/Nader_Jahanbani
21. Prim-minister Dr. Shapour Bakhtiar
http://en.wikipedia.org/wiki/Shapour_Bakhtiar
22. The Iran–Iraq War:
http://en.wikipedia.org/wiki/Iran%E2%80%93Iraq_War
23. 1988 executions of Iranian political prisoners
http://en.wikipedia.org/wiki/1988_Massacre_of_Iranian_Prisoners
24. The Chain murders of Iran:
http://en.wikipedia.org/wiki/Chain_murders_of_Iran
25. The Iran hostage crisis:
http://en.wikipedia.org/wiki/Iran_hostage_crisis
26. Homa Darabi:
http://en.wikipedia.org/wiki/Homa_Darabi
27. Dr. Fereydoun Farrokhzad:
http://en.wikipedia.org/wiki/Fereydoun_Farrokhzad
28. Dr. Abdul Rahman Ghassemlou:
http://en.wikipedia.org/wiki/Abdul_Rahman_Ghassemlou
29. Zahra “Ziba” Kazemi-Ahmadabadi:
http://en.wikipedia.org/wiki/Zahra_Kazemi
30. Dariush Forouhar:
http://en.wikipedia.org/wiki/Dariush_Forouhar
31. Parvaneh Eskandari Forouhar
http://en.wikipedia.org/wiki/Parvaneh_Forouhar
32. Mykonos restaurant assassinations
http://en.wikipedia.org/wiki/Mykonos_restaurant_assassinations
33. Dr. Kazem Rajavi
http://en.wikipedia.org/wiki/Kazem_Rajavi
34. Ali Akbar Tabatabai
http://en.wikipedia.org/wiki/Ali_Akbar_Tabatabai
35. Baha’is since 1979:
Bahá’ís continue to be persecuted in Islamic countries, especially Iran, where over 200 believers were executed between 1978 and 1998. The marginalization of the Iranian Bahá’ís by current governments is rooted in historical efforts by Shi’a clergy to persecute the religious minority. When the Báb started attracting a large following, the clergy hoped to stop the movement from spreading by stating that its followers were enemies of God, and these led to mob attacks and public executions. Starting in the twentieth century, in addition to repression that impacted individual Bahá’ís, centrally-directed campaigns that targeted the entire Bahá’í community and institutions were initiated. In one case in Yazd in 1903 more than 100 Bahá’ís were killed. Later on Bahá’í schools, such as the Tarbiyat boys’ and girl’s schools in Tehran, were closed in the 1930s and ’40s, Bahá’í marriages were not recognized and Baha’i texts were censored.
36. Iranian Student Protests of July, 1999:
http://en.wikipedia.org/wiki/Iran_student_protests,_July_1999
37. Neda Agha-Soltan:
http://en.wikipedia.org/wiki/Death_of_Neda_Agha-Soltan
The roots of all the violence in Islam is within the Islamism which is explained in the following link:
http://en.wikipedia.org/wiki/Islamism
Payandeh Iran,
Sepass,