Article content As Justice Robert Hall explained the details of the case and read the verdict Monday afternoon, members of the Siksika First Nation and others outside the Calgary Courts Centre were seen singing, drumming and dancing, some among them donning bright Indigenous regalia. We apologize, but this video has failed to load. Try refreshing your browser, or Man acquitted of murder, found guilty of manslaughter in killing of Siksika man Back to video Hall acquitted Giffen of first-degree murder in the death of Kristian Ayoungman but found him guilty of manslaughter, for “shamefully and recklessly” shooting a rifle towards the moving truck that was carrying four passengers.