In the summer of 1987, a young bartender from Green Bay, Wisconsin, goes missing, only to turn up dead hours later. The police interviewed dozens of people, including the customers who were at the bar with the victim the night before. 

Almost all of them said they noticed a strange man hanging around the bar wearing a flannel shirt despite temperatures above 90 degrees that day. 

It wasn’t until years later that the police arrested two brothers in connection to the bartender’s murder. But without any forensic evidence linking them to the brutal crime, did the authorities have the right guys?