One missing underscore in a Skyrim-themed username put an innocent Nova Scotia man in prison for 18 months. A 2018 child-luring investigation, which began in Madison, Wisconsin, and eventually extended to Halifax, Canada, was based on a false premise.

Police were looking for a man using the Kik messaging service under the name “fus__ro_dah” (two underscores after “fus”), but they accidentally requested records for the username “fus_ro_dah” (one underscore after “fus”). This one-character difference led them not to the perpetrator but to a Canadian man named Brandon Klayme.

(Ars readers may recognize “fus ro dah” as the Unrelenting Force “dragon shout” from The Elder Scrolls V: Skyrim.) Despite finding no evidence of the crime on his digital devices, Canadian police arrested Klayme in 2020 on child sex abuse charges. He was convicted after a trial in 2023 and sentenced to 18 months in prison.

Even after release, Klayme continued to fight his conviction. In the process of preparing his appeal, the username mistake that led to all these years of disruption was finally discovered. On Thursday, the Nova Scotia Court of Appeal overturned Klayme’s conviction, writing: “Mr. Klayme is factually innocent of the offences. He should never have been charged, let alone convicted.”

The case began in 2018. From August through December of that year, a 12-year-old Wisconsin girl communicated with an adult male through the Kik messaging service. During a check of the girl’s phone, her mother found an “inappropriate” photo of the male and called local police.