Soundex isn't just for genealogists. Cold-case investigators in Illinois have used it to track down the suspect in a pair of 1998 slayings.
According to Prospect Heights Detective Sgt. Al Steffen, Leobardo Barraza had been living in Colorado under an assumed name.
In the last several months, investigators used a computer program called Soundex that matches people to aliases.Note to self: after committing brutal crime, pick a fake surname that starts with a different letter.
"We picked up a possible alias in Colorado that led to an arrest record out there and found out [Barraza] was on probation," Steffen said. "We pulled [the mug shot], and it was him." [Link]