After being sent back to the U.S. for the sixth time in two years, American citizen Junseo Hagh returned to Canada to "finish what he started."

That's according to a search warrant obtained by CBC News from a Canada Border Services Agency (CBSA) investigator, which alleges Hagh also likely smuggled a gun into British Columbia earlier this year.

The warrant alleges that Hagh was deported from Canada six times but returned undetected each time along the B.C.-Washington state border.

The allegations …