Task: Explanation
Input (English): Robert Christian Hansen (February 15, 1939 – August 21, 2014), known in the media as the "Butcher Baker", was an American serial killer. Between 1971 and 1983, Hansen abducted, raped and murdered at least 17, and possibly more than 30 women, in and around Anchorage, Alaska, hunting them down in the woods with a Ruger Mini-14 and other weapons. He was arrested and convicted in 1983 and was sentenced to 461 years with no possibility of parole. Question: The Frozen Ground was based on the crimes of which American serial killer? Answer: Robert Christian Hansen
Output (English): Robert Christian Hansen February 15, 1939 – August 21, 2014, known in the media as the Butcher Baker, was an American serial killer.