premise: HAMILTON (AP) --
  
  Canadian authorities issued a nationwide arrest warrant Monday for James Charles Kopp, a U.S. fugitive on the FBI's most wanted list for an alleged anti-abortion murder.
  Kopp also is wanted for questioning in at least two other shootings of doctors who performed abortions.
  The Canadian warrant issued Monday charged Kopp with attempted murder in the 1995 shooting of Dr. Hugh Short, who was wounded in the elbow but survived the attack at his home in Ancaster, Ontario.
  ``It allows us to spread his name far and wide across Canada and say that he is wanted for attempted murder,'' said police Inspector Dave Bowen.
  Kopp, who is from Vermont, was indicted last year in the October 1998 shooting death of Dr. Barnet Slepian, an obstetrician in Buffalo, New York. He also is wanted in connection with the shooting of doctors in Winnipeg, Vancouver and Rochester, New York.
   What caused Canada to issue a warrant against Kopp?
hypothesis: the 1995 shooting of Dr. Hugh Short