Man dies in dairy farm manure pit as state lawmakers debate farm worker rights bill LA SALLE, CO (KCNC) — A death at a dairy farm in La Salle has become a rallying cry for a bill about farmworker rights. Juan Panzo Temoxtle was operating a manure vacuum truck at Shelton Dairy when it somehow ended up in a manure pit. “All of his coworkers who watched him drown in the pit, including his uncle, they really tried. They did everything they could,” says Nicole Civita with Project Protect Food Systems, a food workers’ rights organization. She says Temoxtle had only been on the job six weeks and was still being trained on the truck when the accident happened. Pictures she provided CBS4 appear to show a broken fence.