A good article of how Boston Police hunted a killer in the digital age.

“Investigators followed the suspect through cell towers, Craigslist accounts, and Internet protocol addresses, right back to his own apartment — 
culminating in a high-tech stake out and one of the more damning hauls of physical evidence authorities had ever seen.”

Read more: http://thephoenix.com/boston/news/136636-hunting-the-craigslist-killer/#ixzz2H6HzKS00