Technology advances are changing our world in many ways. The number of digital footprints you leave is no longer limited to Internet use, but now also includes your movements being tracked by the phone you are carrying and hidden video cameras in many places recording you. Gathering Evidence – 21st Century Style. The Craigslist Killer Case and Boston Marathon Bombing Manhunt Demonstrate the Importance of Digital Clues is one of my favorite columns I have written in a while. I hope you enjoy it and pass it along to a friend. (It is a PDF attachment, so if you get the email alerts, you may have to visit the blog to open the file.)  Download Calloway Gathering Evidence OklaBarJ2013