[1] Kosari was born in 1969 in Ranya, Kurdistan Region and was not nationalistic or religious during his upbringing, but during the Iran–Iraq War he was recruited by Ali Bapir's faction of the Kurdistan Islamic Movement, which was affiliated with the larger Kurdish mujahideen movement, to fight against Saddam Hussein, and he turned into a Kurdish nationalist and radical Muslim, where he later became known as their poet.

[2][3] He played a major role in the 1991 Iraqi uprisings, and he read his poems from the loudspeaker of the Great Mosque of Ranya.

[6] On, December 27 1993, 2 years after the 1991 Iraqi uprisings, Kosari was assassinated by the PUK after their crackdown on the Kurdistan Islamic Movement's leadership.

The PUK Peshmerga soldiers found him bleeding on the ground but still alive, they fired a kill shot and left, but Kosari still survived.

The next day, the villager who helped hide Kosari loaded his dead body in a tractor to be returned to his family in Ranya.