>> clark county sheriff's deputy suzanne hopper arrives at the scene and discovers what she believes are the shooter's footprints. she begins taking photographs, having no idea that an unstable, well armed man waits in the next trailer. suddenly, a shot rings out. >> we've got -- i repeat, 69 is down. we have somebody armed here. >> deputy hopper has been shot. other officers respond, including clark county sheriff gene kelly who hired the deputy himself. >> i circled around and i saw her down. at this point, we had a man in that trailer. >> the shooter is 57-year-old michael ferryman, a resident of the trailer park with a history of mental health problems.