You don't have to be part of a larger organization to be a terrorist. Look at Timothy Mcveigh, or the DC snipers.

Haq had been charged with misdemeanor lewd conduct in Benton County for allegedly exposing himself in a public place in Kennewick, Stephenson said. He declined to elaborate. The charge is punishable by up to a year in jail.
You might want to swing by the Sharia law thread to see how that system treats different genders in regard to sexual crimes.

Haq's father, Mian A. Haq, was a founding member of the Islamic Centre of Tri-Cities in Richland, said center member Youseff Shehadeh. He described the younger Haq as a loner who attended holidays at the center but was barely involved in recent years.
At that specific center. He could have gone to others.

But many of the 9-11 attackers visted strip clubs, so it's too early to tell...
A good point.