An emotionally disturbed 911 emergency dispatcher abused his access to the call center’s databases while tracking his ex-girlfriend and her new boyfriend before murdering both of them.
See Declan McCullagh, “Police Blotter: 911 dispatcher misuses database, kills ex-girlfriend,” which covers the court case stemming from a 2003 shooting, described in “Job loss tied to fatal shooting in Shaler” in the Pittsburgh Post Gazette.
As personal data is collected, distributed, and made available for a broad range of uses, its misuse is nearly inevitable. Stories such as this one, and the Utah case of a credit check leading to rape and kidnapping, are uncommon. I believe that’s because they’re reported less often than they occur, because the shocking crime is the murder or rape, and the details of what enabled it are not yet collected and correlated.