Between the $1970$s and $1990$s$,$ Ted Kaczynski, known as the Unabomber, murdered several people by mailing bombs to computer stores, university research labs, and several other targets, and attempted to destroy an airliner in flight with a bomb in the cargo hold. He was motivated by opposition to technology, and he wrote a long essay about his views, which was published in the Washington Post. Kaczynski's brother David recognized the writing style and turned him in$.$ Did David do the right thing by turning in his brother?