Peshawar, Pakistan — Sami ul-Haq, also known as the spiritual father of the Taliban, was assassinated near his house in the suburbs of Islamabad.

The prominent Muslim cleric was found dead by his relatives. Thus far, the identity of his attackers remains unknown.

Haq was the teacher of numerous high-profile Afghan and Pakistani Taliban leaders.  Recently, the Muslim cleric was returning to the spotlight as the key intermediary in the peace talks between the Afghan government and Taliban leadership.

“Recently, when the Afghan government sent him a delegation and sought his help in bringing the Afghan Taliban to the negotiation table, he offered them his madrassa to sit with each other and build trust,” said a relative of Haq about the cleric’s role in the peace talks.