These bombers stated that they were also behind the June bombing.
Atty. Donald Harris "said a conspiracy by 'the country club set' was more likely than Mafia involvement in the June 2 bombing that fatally wounded Bolles.
The June 17 bombing of the Oasis Hotel in Xinjiang's far western city of Kashgar by Muslim separatists is a recent example.
But he noted that there have been "a number of threats" before and since the June 25 bombing at a military compound.
But fewer and fewer people have been showing up since the June bombing.
The Saudis have suggested Iranian and Syrian involvement in a conspiracy behind the June bombing, which occurred at a military housing complex.
It also claimed responsibility for the June 2005 bombings in Ahwaz City.
A February 2006 and June 2007 bombing that seriously damaged Iraq's al-Askari Mosque, exacerbated tensions that had already existed.
There was electricity, but power cuts were often and after the June 44 bombings there was no electricity at all for nearly two years.
The six were reported to be from the Al Thoqba region of Saudi Arabia, near Al Khobar, where the June bombing took place.