US police are struggling to establish a motive for a shooting spree at an evangelical church service that killed eight people, including the gunman. Terry Ratzmann, 44, shot dead seven churchgoers in Brookfield, Wisconsin, before turning the gun on himself. No suicide note was found during a search of his property, according to police chief Daniel Tushaus. Neighbours meanwhile have described Ratzmann as a quiet, devout man with a passion for trout and tropical plants. He regularly attended services at the Living Church of God, an evangelical group that met at Brookfield's Sheraton hotel to mark the Sabbath on Saturdays....