Garrett Langley says Flock Safety was able to catch an attempted homicide suspect in 17 minutes where the only description was that the suspect was wearing white Converse sneakers: "Someone was bleeding on the street. All they could remember was that the suspect was wearing white Converse sneakers." "The way it used to work—that case never would've been solved. It would've been weeks, maybe months, or it could have gone to a cold case. In this case, the person went from a 911 call to an…