Ayatullah Murtaza Mutahhari was born on February 2nd, 1920, in Farīmān, close to Mashhad in Eastern Iran. He began his formal religious studies at the teaching institution in Mashhad where he discovered his great love for philosophy, theology, and mysticism that came to shape his entire outlook on religion. He later went to Qum where he was able to benefit from the instruction of a wide range of scholars. He studied Fiqh and Usul with Ayatullah Hujjat Kuhkamari, Ayatullāh Sayyid Muhammad Damad, Ayatullāh Sayyid Muhammad Ridha Gulpayagani, and Hajj Sayyid Sadr al-Din al-Sadr as well as Ayatullah Burujerdi. His prime mentor in Qum was Ayatullah Ruhullah Khumayni. Source: http://ijtihad.ir/ScholarDetailsen.aspx?itemid=326
There are many authentic sources about Karbala tragedy which can be found in the authentic narrations from Ahlul Bayt (AS) in our books of Hadeeth like Al-Kaafi, Al-Tahtheeb, Al-Estibsaar, al-Faqeeh, Jaami' al-Ziyaraat,etc.