Masters told an audience at the University of Colorado Law School on Thursday he is writing a book about the case.

The Boulder Camera reports that Masters told his listeners he shut down his emotions while in prison so he could keep fighting his case.

On Feb. 11, 1987, the body of Peggy Hettrick was discovered in a field within the city limits of Fort Collins. Masters -- then a 15-year-old high school student -- had a bedroom window that overlooked the crime scene. He also knew information about the body that focused police attention on him, but later explained he learned the information from a police Explorer Scout in his school who told classmates about it.

A subsequent Fort Collins Police Department investigation resulted in Masters’ arrest in 1998 while he was in California.

In 1999, a jury convicted Masters of first-degree murder, and Masters was sentenced to life in prison.

New DNA evidence led to his release from prison in 2008. A state grand jury cleared Masters earlier this year.

After Masters' release, he sued the city of Fort Collins and Larimer County for wrongful imprisonment, winning $10 million in settlements -- $5.9 million from Fort Collins and $4.1 million from Larimer County.