The murder of Abu Rishu...

The troops have picked up a suspect, but was it an inside job? US Military: Arrest made in killing of Sunni Ally.

A suspected al-Qaeda in Iraq fighter believed responsible for the assassination of a U.S.-allied Sunni tribal leader in Anbar province was arrested north of Baghdad, the military said Sunday.Fallah Khalifa Hiyas

Fayyas al-Jumayli, an Iraqi also known as Abu Khamis, was seized Saturday in a raid west of Balad after intelligence reports linked him to the killing of Sheik Abdul-Sattar Abu Risha, the military said. He was not believed to be acting alone and the search continued for other suspects, military spokesman Rear. Adm. Mark Fox said.

Abu Risha, 37, was leader of the Anbar Salvation Council, also known as the
Anbar Awakening — an alliance of clans backing the Iraqi government and U.S.
forces against al-Qaeda in Iraq. He and three companions were killed in a
bombing Thursday outside his heavily guarded compound in the Anbar capital of
Ramadi.

Iraqi officials said the roadside bomb was just outside Abu Risha's walled
compound in view of a guard shack and an Iraqi police checkpoint, raising
suspicion that the killing may have been an inside job. Fox declined to comment
on the speculation.