From the [1] San Diego Channel, with thanks to Jeffrey Imm:

SAN DIEGO -- A 34-year-old Saudi national believed to have ties with two of the deceased Sept. 11 hijackers was arrested Thursday in San Diego by agents with U.S. Immigration and Customs Enforcement.

Hasan Saddiq Faseh Alddin, a legal permanent resident of the United States, was taken into custody on immigration charges, resulting from two prior domestic violence convictions, according to Mike Unzueta, deputy special agent-in-charge for ICE investigations in San Diego.

Perhaps his connection to the hijackers was coincidental.

Memo to all permanent residents: you will attract less law enforecement attention if you don't beat your wives.