Confederate flag shown at anti-racism parade on July 16 had been purchased at local store
Alberta man apologizes to mayor for actions, points to flag sold in local store
Incident is third sighting of Confederate flag in community in past two weeks
Swastikas and other graffiti spray painted on house and at bandshell
Family says nothing like this has happened since they moved to Summerland in 1980s
Owner has pulled business cards, says everyone is welcome at the health club