In August of 2008, California Fish and Game Wardens received an anonymous report via CalTip about suspected poaching activity in the Virginia Canyon area of Yosemite National Park. Based on this tip, the National Park Service (NPS) and the California Department of Fish and Game (DFG) opened a joint investigation. As the investigation progressed, Chad Gierlich, his 14-year old son, his brother Chris Gierlich, and Kyle Narasky were identified as suspects. https://www.nps.gov/yose/learn/news/poachers08.htm