Jaclyn Learning News Today

It appeared the bottom of the shoe, both shoes, were soaked in blood. >> reporter: it seemed like damning evidence, but after testing that blood further -- >> it came back with two males and two females. >> reporter: again, nothing you can take to the jury. >> right. >> reporter: she tested some of the other evidence, but it didnt lead anywhere. >> reporter: this is more of jaclyn learning how to be a detective. >> yes. >> reporter: she took a week-long course on cell phone investigation taught ...