An innocent man from Dartmouth, N.S., spent 18 months in prison because of a police typo CTV News‘A subtle mistake’: How a single underscore led to an innocent Halifax man’s conviction CBCHis online username was one character different from an alleged predator. He went to jail for it National PostMistaken Username Sent Man to Prison for 18 Months, Court Finds The New York TimesHow a Typo in Child-Luring Investigation Led Police to Wrong Man, Who Spent 18 Months in Prison People.com