NARBERTH, Pa. (AP) — A law school friend of Arlen Specter says the former U.S. senator from Pennsylvania did not let his illness deter him from teaching law school students just days before his death.

Speaking Tuesday at Specter's funeral, U.S. District Judge Jan DuBois says Specter taught one last law class on Oct. 4 at the University of Pennsylvania Law School on the relationship between Congress and the U.S. Supreme Court.

That was, DuBois says, how Specter approached everything in life: "with intensity, determination and grit."

Listening are Vice President Joe Biden, former Pennsylvania governors Ed Rendell and Dick Thornburgh, and others.

Specter died at his home in a Philadelphia suburb on Sunday. He was 82.