A Canadian judge will rule Friday whether to extradite a Canadian man to the United States on charges that he helped coordinate Tunisian jihadists believed responsible for separate suicide attacks in Iraq in 2009 that killed five American soldiers outside a U.S. base and seven people at an Iraqi police complex.

Sayfildin Tahir Sharif, a 40-year-old Canadian citizen and Iraqi national, was arrested in Edmonton, Alberta in 2011 on a U.S. warrant. Sharif has been fighting extradition to federal court in Brooklyn.

His lawyer, Bob Aloneissi, argued in final submissions Tuesday that the prosecution provided no clear evidence that Sharif helped support a terrorist group.

The prosecution contends that evidence from intercepted Internet and phone conversations shows that Sharif was directly involved in supporting terrorists who conducted the suicide bombing.