Just noting this somewhat similar case, fwiw.. August 13, 2019 https://www.bellinghamherald.com/news/local/article173627656.html "Retired Bellingham Police officer Al Jensen talks about the case of the body found in a chimney on Sept. 20, 1987,at Georgia-Pacific pulp mill in Bellingham. The body was never identified" "Sept. 20, 1987, was a pleasant Sunday in Bellingham, with a light breeze and temperatures in the 70s". "According to the autopsy and police, the victim was likely a man of slight stature, about 25 to 35 years old. He was 5 feet 8 inches to 5 feet 9 inches tall, and weighed 130 to 155 pounds." "In 2006, a news story raised the question of whether the victim might have been female. Richard Severson, a steam engineer at Western Washington University, told The Bellingham Herald that he had given a woman a tour of Western’s steam plant in late summer 1987."