Nasiruddin Haqqani, the son of Jalaluddin Haqqani, was a fundraiser and intermediary for the group, which is affiliated with both al-Qaida and the Taliban. His body was discovered in the Bhara Kahu area near Pakistan's capital, Islamabad, police officials confirmed.
Pakistani intelligence said Haqqani was apparently gunned down by an assailant on a motorcycle outside a bakery. While no groups have thus far taken credit for the death, there has been friction between the Haqqanis and the Pakistani Taliban.
The Haqqanis, whose network has been designated a terrorist group by the U.S., are behind some of the worst attacks in Afghanistan in recent years, including a siege on the U.S. embassy in 2011 and a bombing on a CIA base in Khost that killed 9 people. And on Sept. 10, 2011, a truck bomb outside a U.S. Army outpost in Wardak killed five Afghans and injured 91 people, including 77 U.S. soldiers.