external In the Media May 16, 2022 Kenneth Gray, senior lecturer of criminal justice, homeland security, and investigative services, talks about the motive behind the Buffalo shooting and the meaning of 'great replacement theory,’ which was referenced in a manifesto created by the gunman. https://www.wfsb.com/video/2022/05/16/interview-police-investigate-motive-buffalo-shooting/ kenneth-gray news-all news-in-the-media year-2022 month-may name-kenneth-gray