Authorities didn't just use fingerprints
                                
                                
                                    (Newser) -
                                    Cellphone pings, DNA, and misspelled words all helped authorities to find and arrest suspected bomb-mailer Cesar Sayoc on Friday,  CNN  reports. Law enforcement officials say they got a big break Thursday when five of the packages were traced to a processing and distribution center in Opa-Locka, near Miami. When DNA...