NPR reports a real life X-File: someone (or something!) drained the blood from cattle at Silvies Valley Ranch in eastern Oregon:
The bull looks like a giant, deflated plush toy. It smells. Weirdly, there are no signs of buzzards, coyotes or other scavengers. His red coat is as shiny as if he were going to the fair, but he's bloodless and his tongue and genitals have been surgically cut out.
Over the course of a few days, more mutilated bulls were discovered:
four more Hereford bulls were found within 1.5 miles in the same condition. There were no tracks around the carcasses.
To date, the investigation has mostly just eliminated possibilities such as poisonous plants or bullets being the cause of death. Perhaps overlooking the public's enthusiasm for Westworld-style adventures, the ranch does not seem to have added the ongoing investigation to its list of activities.